how many pages in a doctoral dissertation

Tips for writing a PhD dissertation: FAQs answered

From how to choose a topic to writing the abstract and managing work-life balance through the years it takes to complete a doctorate, here we collect expert advice to get you through the PhD writing process

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Embarking on a PhD is “probably the most challenging task that a young scholar attempts to do”, write Mark Stephan Felix and Ian Smith in their practical guide to dissertation and thesis writing. After years of reading and research to answer a specific question or proposition, the candidate will submit about 80,000 words that explain their methods and results and demonstrate their unique contribution to knowledge. Here are the answers to frequently asked questions about writing a doctoral thesis or dissertation.

What’s the difference between a dissertation and a thesis?

Whatever the genre of the doctorate, a PhD must offer an original contribution to knowledge. The terms “dissertation” and “thesis” both refer to the long-form piece of work produced at the end of a research project and are often used interchangeably. Which one is used might depend on the country, discipline or university. In the UK, “thesis” is generally used for the work done for a PhD, while a “dissertation” is written for a master’s degree. The US did the same until the 1960s, says Oxbridge Essays, when the convention switched, and references appeared to a “master’s thesis” and “doctoral dissertation”. To complicate matters further, undergraduate long essays are also sometimes referred to as a thesis or dissertation.

The Oxford English Dictionary defines “thesis” as “a dissertation, especially by a candidate for a degree” and “dissertation” as “a detailed discourse on a subject, especially one submitted in partial fulfilment of the requirements of a degree or diploma”.

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The title “doctor of philosophy”, incidentally, comes from the degree’s origins, write Dr Felix, an associate professor at Mahidol University in Thailand, and Dr Smith, retired associate professor of education at the University of Sydney , whose co-authored guide focuses on the social sciences. The PhD was first awarded in the 19th century by the philosophy departments of German universities, which at that time taught science, social science and liberal arts.

How long should a PhD thesis be?

A PhD thesis (or dissertation) is typically 60,000 to 120,000 words ( 100 to 300 pages in length ) organised into chapters, divisions and subdivisions (with roughly 10,000 words per chapter) – from introduction (with clear aims and objectives) to conclusion.

The structure of a dissertation will vary depending on discipline (humanities, social sciences and STEM all have their own conventions), location and institution. Examples and guides to structure proliferate online. The University of Salford , for example, lists: title page, declaration, acknowledgements, abstract, table of contents, lists of figures, tables and abbreviations (where needed), chapters, appendices and references.

A scientific-style thesis will likely need: introduction, literature review, materials and methods, results, discussion, bibliography and references.

As well as checking the overall criteria and expectations of your institution for your research, consult your school handbook for the required length and format (font, layout conventions and so on) for your dissertation.

A PhD takes three to four years to complete; this might extend to six to eight years for a part-time doctorate.

What are the steps for completing a PhD?

Before you get started in earnest , you’ll likely have found a potential supervisor, who will guide your PhD journey, and done a research proposal (which outlines what you plan to research and how) as part of your application, as well as a literature review of existing scholarship in the field, which may form part of your final submission.

In the UK, PhD candidates undertake original research and write the results in a thesis or dissertation, says author and vlogger Simon Clark , who posted videos to YouTube throughout his own PhD journey . Then they submit the thesis in hard copy and attend the viva voce (which is Latin for “living voice” and is also called an oral defence or doctoral defence) to convince the examiners that their work is original, understood and all their own. Afterwards, if necessary, they make changes and resubmit. If the changes are approved, the degree is awarded.

The steps are similar in Australia , although candidates are mostly assessed on their thesis only; some universities may include taught courses, and some use a viva voce. A PhD in Australia usually takes three years full time.

In the US, the PhD process begins with taught classes (similar to a taught master’s) and a comprehensive exam (called a “field exam” or “dissertation qualifying exam”) before the candidate embarks on their original research. The whole journey takes four to six years.

A PhD candidate will need three skills and attitudes to get through their doctoral studies, says Tara Brabazon , professor of cultural studies at Flinders University in Australia who has written extensively about the PhD journey :

• master the academic foundational skills (research, writing, ability to navigate different modalities)
• time-management skills and the ability to focus on reading and writing
• determined motivation to do a PhD.

How do I choose the topic for my PhD dissertation or thesis?

It’s important to find a topic that will sustain your interest for the years it will take to complete a PhD. “Finding a sustainable topic is the most important thing you [as a PhD student] would do,” says Dr Brabazon in a video for Times Higher Education . “Write down on a big piece of paper all the topics, all the ideas, all the questions that really interest you, and start to cross out all the ones that might just be a passing interest.” Also, she says, impose the “Who cares? Who gives a damn?” question to decide if the topic will be useful in a future academic career.

The availability of funding and scholarships is also often an important factor in this decision, says veteran PhD supervisor Richard Godwin, from Harper Adams University .

Define a gap in knowledge – and one that can be questioned, explored, researched and written about in the time available to you, says Gina Wisker, head of the Centre for Learning and Teaching at the University of Brighton. “Set some boundaries,” she advises. “Don’t try to ask everything related to your topic in every way.”

James Hartley, research professor in psychology at Keele University, says it can also be useful to think about topics that spark general interest. If you do pick something that taps into the zeitgeist, your findings are more likely to be noticed.

You also need to find someone else who is interested in it, too. For STEM candidates , this will probably be a case of joining a team of people working in a similar area where, ideally, scholarship funding is available. A centre for doctoral training (CDT) or doctoral training partnership (DTP) will advertise research projects. For those in the liberal arts and social sciences, it will be a matter of identifying a suitable supervisor .

Avoid topics that are too broad (hunger across a whole country, for example) or too narrow (hunger in a single street) to yield useful solutions of academic significance, write Mark Stephan Felix and Ian Smith. And ensure that you’re not repeating previous research or trying to solve a problem that has already been answered. A PhD thesis must be original.

What is a thesis proposal?

After you have read widely to refine your topic and ensure that it and your research methods are original, and discussed your project with a (potential) supervisor, you’re ready to write a thesis proposal , a document of 1,500 to 3,000 words that sets out the proposed direction of your research. In the UK, a research proposal is usually part of the application process for admission to a research degree. As with the final dissertation itself, format varies among disciplines, institutions and countries but will usually contain title page, aims, literature review, methodology, timetable and bibliography. Examples of research proposals are available online.

How to write an abstract for a dissertation or thesis

The abstract presents your thesis to the wider world – and as such may be its most important element , says the NUI Galway writing guide. It outlines the why, how, what and so what of the thesis . Unlike the introduction, which provides background but not research findings, the abstract summarises all sections of the dissertation in a concise, thorough, focused way and demonstrates how well the writer understands their material. Check word-length limits with your university – and stick to them. About 300 to 500 words is a rough guide ­– but it can be up to 1,000 words.

The abstract is also important for selection and indexing of your thesis, according to the University of Melbourne guide , so be sure to include searchable keywords.

It is the first thing to be read but the last element you should write. However, Pat Thomson , professor of education at the University of Nottingham , advises that it is not something to be tackled at the last minute.

How to write a stellar conclusion

As well as chapter conclusions, a thesis often has an overall conclusion to draw together the key points covered and to reflect on the unique contribution to knowledge. It can comment on future implications of the research and open up new ideas emanating from the work. It is shorter and more general than the discussion chapter , says online editing site Scribbr, and reiterates how the work answers the main question posed at the beginning of the thesis. The conclusion chapter also often discusses the limitations of the research (time, scope, word limit, access) in a constructive manner.

It can be useful to keep a collection of ideas as you go – in the online forum DoctoralWriting SIG , academic developer Claire Aitchison, of the University of South Australia , suggests using a “conclusions bank” for themes and inspirations, and using free-writing to keep this final section fresh. (Just when you feel you’ve run out of steam.) Avoid aggrandising or exaggerating the impact of your work. It should remind the reader what has been done, and why it matters.

How to format a bibliography (or where to find a reliable model)

Most universities use a preferred style of references , writes THE associate editor Ingrid Curl. Make sure you know what this is and follow it. “One of the most common errors in academic writing is to cite papers in the text that do not then appear in the bibliography. All references in your thesis need to be cross-checked with the bibliography before submission. Using a database during your research can save a great deal of time in the writing-up process.”

A bibliography contains not only works cited explicitly but also those that have informed or contributed to the research – and as such illustrates its scope; works are not limited to written publications but include sources such as film or visual art.

Examiners can start marking from the back of the script, writes Dr Brabazon. “Just as cooks are judged by their ingredients and implements, we judge doctoral students by the calibre of their sources,” she advises. She also says that candidates should be prepared to speak in an oral examination of the PhD about any texts included in their bibliography, especially if there is a disconnect between the thesis and the texts listed.

Can I use informal language in my PhD?

Don’t write like a stereotypical academic , say Kevin Haggerty, professor of sociology at the University of Alberta , and Aaron Doyle, associate professor in sociology at Carleton University , in their tongue-in-cheek guide to the PhD journey. “If you cannot write clearly and persuasively, everything about PhD study becomes harder.” Avoid jargon, exotic words, passive voice and long, convoluted sentences – and work on it consistently. “Writing is like playing guitar; it can improve only through consistent, concerted effort.”

Be deliberate and take care with your writing . “Write your first draft, leave it and then come back to it with a critical eye. Look objectively at the writing and read it closely for style and sense,” advises THE ’s Ms Curl. “Look out for common errors such as dangling modifiers, subject-verb disagreement and inconsistency. If you are too involved with the text to be able to take a step back and do this, then ask a friend or colleague to read it with a critical eye. Remember Hemingway’s advice: ‘Prose is architecture, not interior decoration.’ Clarity is key.”

How often should a PhD candidate meet with their supervisor?

Since the PhD supervisor provides a range of support and advice – including on research techniques, planning and submission – regular formal supervisions are essential, as is establishing a line of contact such as email if the candidate needs help or advice outside arranged times. The frequency varies according to university, discipline and individual scholars.

Once a week is ideal, says Dr Brabazon. She also advocates a two-hour initial meeting to establish the foundations of the candidate-supervisor relationship .

The University of Edinburgh guide to writing a thesis suggests that creating a timetable of supervisor meetings right at the beginning of the research process will allow candidates to ensure that their work stays on track throughout. The meetings are also the place to get regular feedback on draft chapters.

“A clear structure and a solid framework are vital for research,” writes Dr Godwin on THE Campus . Use your supervisor to establish this and provide a realistic view of what can be achieved. “It is vital to help students identify the true scientific merit, the practical significance of their work and its value to society.”

How to proofread your dissertation (what to look for)

Proofreading is the final step before printing and submission. Give yourself time to ensure that your work is the best it can be . Don’t leave proofreading to the last minute; ideally, break it up into a few close-reading sessions. Find a quiet place without distractions. A checklist can help ensure that all aspects are covered.

Proofing is often helped by a change of format – so it can be easier to read a printout rather than working off the screen – or by reading sections out of order. Fresh eyes are better at spotting typographical errors and inconsistencies, so leave time between writing and proofreading. Check with your university’s policies before asking another person to proofread your thesis for you.

As well as close details such as spelling and grammar, check that all sections are complete, all required elements are included , and nothing is repeated or redundant. Don’t forget to check headings and subheadings. Does the text flow from one section to another? Is the structure clear? Is the work a coherent whole with a clear line throughout?

Ensure consistency in, for example, UK v US spellings, capitalisation, format, numbers (digits or words, commas, units of measurement), contractions, italics and hyphenation. Spellchecks and online plagiarism checkers are also your friend.

How do you manage your time to complete a PhD dissertation?

Treat your PhD like a full-time job, that is, with an eight-hour working day. Within that, you’ll need to plan your time in a way that gives a sense of progress . Setbacks and periods where it feels as if you are treading water are all but inevitable, so keeping track of small wins is important, writes A Happy PhD blogger Luis P. Prieto.

Be specific with your goals – use the SMART acronym (specific, measurable, attainable, relevant and timely).

And it’s never too soon to start writing – even if early drafts are overwritten and discarded.

“ Write little and write often . Many of us make the mistake of taking to writing as one would take to a sprint, in other words, with relatively short bursts of intense activity. Whilst this can prove productive, generally speaking it is not sustainable…In addition to sustaining your activity, writing little bits on a frequent basis ensures that you progress with your thinking. The comfort of remaining in abstract thought is common; writing forces us to concretise our thinking,” says Christian Gilliam, AHSS researcher developer at the University of Cambridge ’s Centre for Teaching and Learning.

Make time to write. “If you are more alert early in the day, find times that suit you in the morning; if you are a ‘night person’, block out some writing sessions in the evenings,” advises NUI Galway’s Dermot Burns, a lecturer in English and creative arts. Set targets, keep daily notes of experiment details that you will need in your thesis, don’t confuse writing with editing or revising – and always back up your work.

What work-life balance tips should I follow to complete my dissertation?

During your PhD programme, you may have opportunities to take part in professional development activities, such as teaching, attending academic conferences and publishing your work. Your research may include residencies, field trips or archive visits. This will require time-management skills as well as prioritising where you devote your energy and factoring in rest and relaxation. Organise your routine to suit your needs , and plan for steady and regular progress.

How to deal with setbacks while writing a thesis or dissertation

Have a contingency plan for delays or roadblocks such as unexpected results.

Accept that writing is messy, first drafts are imperfect, and writer’s block is inevitable, says Dr Burns. His tips for breaking it include relaxation to free your mind from clutter, writing a plan and drawing a mind map of key points for clarity. He also advises feedback, reflection and revision: “Progressing from a rough version of your thoughts to a superior and workable text takes time, effort, different perspectives and some expertise.”

“Academia can be a relentlessly brutal merry-go-round of rejection, rebuttal and failure,” writes Lorraine Hope , professor of applied cognitive psychology at the University of Portsmouth, on THE Campus. Resilience is important. Ensure that you and your supervisor have a relationship that supports open, frank, judgement-free communication.

If you would like advice and insight from academics and university staff delivered direct to your inbox each week, sign up for the Campus newsletter .

Authoring a PhD Thesis: How to Plan, Draft, Write and Finish a Doctoral Dissertation (2003), by Patrick Dunleavy

Writing Your Dissertation in Fifteen Minutes a Day: A Guide to Starting, Revising, and Finishing Your Doctoral Thesis (1998), by Joan Balker

Challenges in Writing Your Dissertation: Coping with the Emotional, Interpersonal, and Spiritual Struggles (2015), by Noelle Sterne

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• How Long Is a PhD Thesis?
• Doing a PhD

It’s no secret that one of the most challenging aspects of a PhD degree is the volume of work that goes into writing your thesis . So this raises the question, exactly how long is a thesis?

Unfortunately, there’s no one size fits all answer to this question. However, from the analysis of over 100 PhD theses, the average thesis length is between 80,000 and 100,000 words. A further analysis of 1000 PhD thesis shows the average number of pages to be 204 . In reality, the actual word count for each PhD thesis will depend on the specific subject and the university it is being hosted by. This is because universities set their own word length requirements, with most found to be opting for around 100,000.

To find out more about how these word limits differ between universities, how the average word count from STEM thesis differ from non-STEM thesis and a more detailed breakdown from the analysis of over 1000 PhDs, carry on reading the below.

Word Count Differences Between Universities

For any PhD student writing a thesis, they will find that their document will be subject to a word limit set by their university. In nearly all cases, the limit only concerns the maximum number of words and doesn’t place any restrictions on the minimum word limit. The reason for this is that the student will be expected to write their thesis with the aim of clearly explaining their research, and so it is up to the student to determine what he deems appropriate.

Saying this, it is well accepted amongst PhD students and supervisors that the absence of a lower limit doesn’t suggest that a thesis can be ‘light’. Your thesis will focus on several years worth of original research and explore new ideas, theories or concepts. Besides this, your thesis will need to cover a wide range of topics such as your literature review, research methodology, results and conclusion. Therefore, your examiners will expect the length of your thesis to be proportional to convey all this information to a sufficient level.

Selecting a handful of universities at random, they state the following thesis word limits on their website:

• University of Edinburgh: 100,000
• University of Exeter: 100,000
• University of Leister: 80,000
• University of Bath: 80,000
• University of Warwick: 70,000

The above universities set upper word limits that apply across the board, however, some universities, such as the University of Birmingham and the University of Sheffield, set different word limits for different departments. For example, the University of Sheffield adopts these limits:

• Arts & Humanities: 75,000
• Medicine, Dentistry & Health: 75,000
• Science: 80,000
• Social Sciences: 75,000-100,000

Although there’s a range of limit, it’s safe to say that the majority fall within the 80,000 to 100,000 bracket.

Word Count Based on Data from past Theses

A poll of 149 postdocs.

In mid-2019, Dr Eva Lantsoght, a published author, academic blogger and Structural Engineering Professor, conducted a poll which asked postgraduate doctoral students to share the length of their final thesis. 149 PostDoc students responded to the survey, with the majority reporting a length falling within the ‘80,000 – 120,000 words’ bracket as seen below.

Analysis of 1000 PhD Theses

Over a three-year time period, Dr Ian Brailsford, a then Postgraduate Learning Adviser at the University of Auckland, analysed 1000 doctoral thesis submitted to his university’s library. The PhD theses which formed the basis of his analysis were produced between 2008 to 2017 and showed:

• Average number of pages = 204
• Median number of pages = 198
• Average number of chapters = 7.6

We should note that the above metrics only cover the content falling within the main body of the thesis. This includes the introduction, literature review, methods section, results chapter, discussions and conclusions. All other sections, such as the title page, abstract, table of contents, acknowledgements, bibliography and appendices were omitted from the count.

Although it’s impossible to draw the exact word count from the number of pages alone, by using the universities recommended format of 12pt Times New Roman and 1.5 lines spacing, and assuming 10% of the main body are figures and footnotes, this equates to an average main body of 52,000 words.

STEM vs Non-STEM

As part of Dr Ian Brailsford’s analysis, he also compared the length of STEM doctorate theses to non-STEM theses. He found that STEM theses tended to be shorter. In fact, he found STEM theses to have a medium page length of 159 whilst non-STEM theses had a medium of around 223 pages. This is a 40% increase in average length!

Can You Exceed the Word Count?

Whilst most universities will allow you to go over the word count if you need to, it comes with the caveat that you must have a very strong reason for needing to do so. Besides this, your supervisor will also need to support your request. This is to acknowledge that they have reviewed your situation and agree that exceeding the word limit will be absolutely necessary to avoid detriment unnecessary detriment to your work.

This means that whilst it is possible to submit a thesis over 100,000 words or more, it’s unlikely that your research project will need to.

How Does This Compare to a Masters Dissertation?

The average Masters dissertation length is approximately 20,000 words whilst a thesis is 4 to 5 times this length at approximately 80,000 – 100,000.

The key reason for this difference is because of the level of knowledge they convey. A Master’s dissertation focuses on concluding from existing knowledge whilst a PhD thesis focuses on drawing a conclusion from new knowledge. As a result, the thesis is significantly longer as the new knowledge needs to be well documented so it can be verified, disseminated and used to shape future research.

Finding a PhD has never been this easy – search for a PhD by keyword, location or academic area of interest.

Related Reading

Unfortunately, the completion of your thesis doesn’t mark the end of your degree just yet. Once you submit your thesis, it’s time to start preparing for your viva – the all-to-fun thesis defence interview! To help you prepare for this, we’ve produced a helpful guide which you can read here: The Complete Guide to PhD Vivas.

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Dissertation Structure & Layout 101: How to structure your dissertation, thesis or research project.

By: Derek Jansen (MBA) Reviewed By: David Phair (PhD) | July 2019

So, you’ve got a decent understanding of what a dissertation is , you’ve chosen your topic and hopefully you’ve received approval for your research proposal . Awesome! Now its time to start the actual dissertation or thesis writing journey.

To craft a high-quality document, the very first thing you need to understand is dissertation structure . In this post, we’ll walk you through the generic dissertation structure and layout, step by step. We’ll start with the big picture, and then zoom into each chapter to briefly discuss the core contents. If you’re just starting out on your research journey, you should start with this post, which covers the big-picture process of how to write a dissertation or thesis .

*The Caveat *

In this post, we’ll be discussing a traditional dissertation/thesis structure and layout, which is generally used for social science research across universities, whether in the US, UK, Europe or Australia. However, some universities may have small variations on this structure (extra chapters, merged chapters, slightly different ordering, etc).

So, always check with your university if they have a prescribed structure or layout that they expect you to work with. If not, it’s safe to assume the structure we’ll discuss here is suitable. And even if they do have a prescribed structure, you’ll still get value from this post as we’ll explain the core contents of each section.  

Overview: S tructuring a dissertation or thesis

• Acknowledgements page
• Abstract (or executive summary)
• Table of contents , list of figures and tables
• Chapter 1: Introduction
• Chapter 2: Literature review
• Chapter 3: Methodology
• Chapter 4: Results
• Chapter 5: Discussion
• Chapter 6: Conclusion
• Reference list

As I mentioned, some universities will have slight variations on this structure. For example, they want an additional “personal reflection chapter”, or they might prefer the results and discussion chapter to be merged into one. Regardless, the overarching flow will always be the same, as this flow reflects the research process , which we discussed here – i.e.:

• The introduction chapter presents the core research question and aims .
• The literature review chapter assesses what the current research says about this question.
• The methodology, results and discussion chapters go about undertaking new research about this question.
• The conclusion chapter (attempts to) answer the core research question .

In other words, the dissertation structure and layout reflect the research process of asking a well-defined question(s), investigating, and then answering the question – see below.

To restate that – the structure and layout of a dissertation reflect the flow of the overall research process . This is essential to understand, as each chapter will make a lot more sense if you “get” this concept. If you’re not familiar with the research process, read this post before going further.

Right. Now that we’ve covered the big picture, let’s dive a little deeper into the details of each section and chapter. Oh and by the way, you can also grab our free dissertation/thesis template here to help speed things up.

The title page of your dissertation is the very first impression the marker will get of your work, so it pays to invest some time thinking about your title. But what makes for a good title? A strong title needs to be 3 things:

• Succinct (not overly lengthy or verbose)
• Specific (not vague or ambiguous)
• Representative of the research you’re undertaking (clearly linked to your research questions)

Typically, a good title includes mention of the following:

• The broader area of the research (i.e. the overarching topic)
• The specific focus of your research (i.e. your specific context)
• Indication of research design (e.g. quantitative , qualitative , or  mixed methods ).

For example:

A quantitative investigation [research design] into the antecedents of organisational trust [broader area] in the UK retail forex trading market [specific context/area of focus].

Again, some universities may have specific requirements regarding the format and structure of the title, so it’s worth double-checking expectations with your institution (if there’s no mention in the brief or study material).

Acknowledgements

This page provides you with an opportunity to say thank you to those who helped you along your research journey. Generally, it’s optional (and won’t count towards your marks), but it is academic best practice to include this.

So, who do you say thanks to? Well, there’s no prescribed requirements, but it’s common to mention the following people:

• Your dissertation supervisor or committee.
• Any professors, lecturers or academics that helped you understand the topic or methodologies.
• Any tutors, mentors or advisors.
• Your family and friends, especially spouse (for adult learners studying part-time).

There’s no need for lengthy rambling. Just state who you’re thankful to and for what (e.g. thank you to my supervisor, John Doe, for his endless patience and attentiveness) – be sincere. In terms of length, you should keep this to a page or less.

Abstract or executive summary

The dissertation abstract (or executive summary for some degrees) serves to provide the first-time reader (and marker or moderator) with a big-picture view of your research project. It should give them an understanding of the key insights and findings from the research, without them needing to read the rest of the report – in other words, it should be able to stand alone .

For it to stand alone, your abstract should cover the following key points (at a minimum):

• Your research questions and aims – what key question(s) did your research aim to answer?
• Your methodology – how did you go about investigating the topic and finding answers to your research question(s)?
• Your findings – following your own research, what did do you discover?
• Your conclusions – based on your findings, what conclusions did you draw? What answers did you find to your research question(s)?

So, in much the same way the dissertation structure mimics the research process, your abstract or executive summary should reflect the research process, from the initial stage of asking the original question to the final stage of answering that question.

In practical terms, it’s a good idea to write this section up last , once all your core chapters are complete. Otherwise, you’ll end up writing and rewriting this section multiple times (just wasting time). For a step by step guide on how to write a strong executive summary, check out this post .

Need a helping hand?

Table of contents

This section is straightforward. You’ll typically present your table of contents (TOC) first, followed by the two lists – figures and tables. I recommend that you use Microsoft Word’s automatic table of contents generator to generate your TOC. If you’re not familiar with this functionality, the video below explains it simply:

If you find that your table of contents is overly lengthy, consider removing one level of depth. Oftentimes, this can be done without detracting from the usefulness of the TOC.

Right, now that the “admin” sections are out of the way, its time to move on to your core chapters. These chapters are the heart of your dissertation and are where you’ll earn the marks. The first chapter is the introduction chapter – as you would expect, this is the time to introduce your research…

It’s important to understand that even though you’ve provided an overview of your research in your abstract, your introduction needs to be written as if the reader has not read that (remember, the abstract is essentially a standalone document). So, your introduction chapter needs to start from the very beginning, and should address the following questions:

• What will you be investigating (in plain-language, big picture-level)?
• Why is that worth investigating? How is it important to academia or business? How is it sufficiently original?
• What are your research aims and research question(s)? Note that the research questions can sometimes be presented at the end of the literature review (next chapter).
• What is the scope of your study? In other words, what will and won’t you cover ?
• How will you approach your research? In other words, what methodology will you adopt?
• How will you structure your dissertation? What are the core chapters and what will you do in each of them?

These are just the bare basic requirements for your intro chapter. Some universities will want additional bells and whistles in the intro chapter, so be sure to carefully read your brief or consult your research supervisor.

If done right, your introduction chapter will set a clear direction for the rest of your dissertation. Specifically, it will make it clear to the reader (and marker) exactly what you’ll be investigating, why that’s important, and how you’ll be going about the investigation. Conversely, if your introduction chapter leaves a first-time reader wondering what exactly you’ll be researching, you’ve still got some work to do.

Now that you’ve set a clear direction with your introduction chapter, the next step is the literature review . In this section, you will analyse the existing research (typically academic journal articles and high-quality industry publications), with a view to understanding the following questions:

• What does the literature currently say about the topic you’re investigating?
• Is the literature lacking or well established? Is it divided or in disagreement?
• How does your research fit into the bigger picture?
• How does your research contribute something original?
• How does the methodology of previous studies help you develop your own?

Depending on the nature of your study, you may also present a conceptual framework towards the end of your literature review, which you will then test in your actual research.

Again, some universities will want you to focus on some of these areas more than others, some will have additional or fewer requirements, and so on. Therefore, as always, its important to review your brief and/or discuss with your supervisor, so that you know exactly what’s expected of your literature review chapter.

Now that you’ve investigated the current state of knowledge in your literature review chapter and are familiar with the existing key theories, models and frameworks, its time to design your own research. Enter the methodology chapter – the most “science-ey” of the chapters…

In this chapter, you need to address two critical questions:

• Exactly HOW will you carry out your research (i.e. what is your intended research design)?
• Exactly WHY have you chosen to do things this way (i.e. how do you justify your design)?

Remember, the dissertation part of your degree is first and foremost about developing and demonstrating research skills . Therefore, the markers want to see that you know which methods to use, can clearly articulate why you’ve chosen then, and know how to deploy them effectively.

Importantly, this chapter requires detail – don’t hold back on the specifics. State exactly what you’ll be doing, with who, when, for how long, etc. Moreover, for every design choice you make, make sure you justify it.

In practice, you will likely end up coming back to this chapter once you’ve undertaken all your data collection and analysis, and revise it based on changes you made during the analysis phase. This is perfectly fine. Its natural for you to add an additional analysis technique, scrap an old one, etc based on where your data lead you. Of course, I’m talking about small changes here – not a fundamental switch from qualitative to quantitative, which will likely send your supervisor in a spin!

You’ve now collected your data and undertaken your analysis, whether qualitative, quantitative or mixed methods. In this chapter, you’ll present the raw results of your analysis . For example, in the case of a quant study, you’ll present the demographic data, descriptive statistics, inferential statistics , etc.

Typically, Chapter 4 is simply a presentation and description of the data, not a discussion of the meaning of the data. In other words, it’s descriptive, rather than analytical – the meaning is discussed in Chapter 5. However, some universities will want you to combine chapters 4 and 5, so that you both present and interpret the meaning of the data at the same time. Check with your institution what their preference is.

Now that you’ve presented the data analysis results, its time to interpret and analyse them. In other words, its time to discuss what they mean, especially in relation to your research question(s).

What you discuss here will depend largely on your chosen methodology. For example, if you’ve gone the quantitative route, you might discuss the relationships between variables . If you’ve gone the qualitative route, you might discuss key themes and the meanings thereof. It all depends on what your research design choices were.

Most importantly, you need to discuss your results in relation to your research questions and aims, as well as the existing literature. What do the results tell you about your research questions? Are they aligned with the existing research or at odds? If so, why might this be? Dig deep into your findings and explain what the findings suggest, in plain English.

The final chapter – you’ve made it! Now that you’ve discussed your interpretation of the results, its time to bring it back to the beginning with the conclusion chapter . In other words, its time to (attempt to) answer your original research question s (from way back in chapter 1). Clearly state what your conclusions are in terms of your research questions. This might feel a bit repetitive, as you would have touched on this in the previous chapter, but its important to bring the discussion full circle and explicitly state your answer(s) to the research question(s).

Next, you’ll typically discuss the implications of your findings . In other words, you’ve answered your research questions – but what does this mean for the real world (or even for academia)? What should now be done differently, given the new insight you’ve generated?

Lastly, you should discuss the limitations of your research, as well as what this means for future research in the area. No study is perfect, especially not a Masters-level. Discuss the shortcomings of your research. Perhaps your methodology was limited, perhaps your sample size was small or not representative, etc, etc. Don’t be afraid to critique your work – the markers want to see that you can identify the limitations of your work. This is a strength, not a weakness. Be brutal!

This marks the end of your core chapters – woohoo! From here on out, it’s pretty smooth sailing.

The reference list is straightforward. It should contain a list of all resources cited in your dissertation, in the required format, e.g. APA , Harvard, etc.

It’s essential that you use reference management software for your dissertation. Do NOT try handle your referencing manually – its far too error prone. On a reference list of multiple pages, you’re going to make mistake. To this end, I suggest considering either Mendeley or Zotero. Both are free and provide a very straightforward interface to ensure that your referencing is 100% on point. I’ve included a simple how-to video for the Mendeley software (my personal favourite) below:

Some universities may ask you to include a bibliography, as opposed to a reference list. These two things are not the same . A bibliography is similar to a reference list, except that it also includes resources which informed your thinking but were not directly cited in your dissertation. So, double-check your brief and make sure you use the right one.

The very last piece of the puzzle is the appendix or set of appendices. This is where you’ll include any supporting data and evidence. Importantly, supporting is the keyword here.

Your appendices should provide additional “nice to know”, depth-adding information, which is not critical to the core analysis. Appendices should not be used as a way to cut down word count (see this post which covers how to reduce word count ). In other words, don’t place content that is critical to the core analysis here, just to save word count. You will not earn marks on any content in the appendices, so don’t try to play the system!

Time to recap…

And there you have it – the traditional dissertation structure and layout, from A-Z. To recap, the core structure for a dissertation or thesis is (typically) as follows:

• Acknowledgments page

Most importantly, the core chapters should reflect the research process (asking, investigating and answering your research question). Moreover, the research question(s) should form the golden thread throughout your dissertation structure. Everything should revolve around the research questions, and as you’ve seen, they should form both the start point (i.e. introduction chapter) and the endpoint (i.e. conclusion chapter).

I hope this post has provided you with clarity about the traditional dissertation/thesis structure and layout. If you have any questions or comments, please leave a comment below, or feel free to get in touch with us. Also, be sure to check out the rest of the  Grad Coach Blog .

Psst... there’s more!

This post was based on one of our popular Research Bootcamps . If you're working on a research project, you'll definitely want to check this out ...

36 Comments

many thanks i found it very useful

Glad to hear that, Arun. Good luck writing your dissertation.

Such clear practical logical advice. I very much needed to read this to keep me focused in stead of fretting.. Perfect now ready to start my research!

what about scientific fields like computer or engineering thesis what is the difference in the structure? thank you very much

Thanks so much this helped me a lot!

Very helpful and accessible. What I like most is how practical the advice is along with helpful tools/ links.

Thanks Ade!

Thank you so much sir.. It was really helpful..

You’re welcome!

Hi! How many words maximum should contain the abstract?

Thank you so much 😊 Find this at the right moment

You’re most welcome. Good luck with your dissertation.

best ever benefit i got on right time thank you

Many times Clarity and vision of destination of dissertation is what makes the difference between good ,average and great researchers the same way a great automobile driver is fast with clarity of address and Clear weather conditions .

I guess Great researcher = great ideas + knowledge + great and fast data collection and modeling + great writing + high clarity on all these

You have given immense clarity from start to end.

Morning. Where will I write the definitions of what I’m referring to in my report?

Thank you so much Derek, I was almost lost! Thanks a tonnnn! Have a great day!

Thanks ! so concise and valuable

This was very helpful. Clear and concise. I know exactly what to do now.

Thank you for allowing me to go through briefly. I hope to find time to continue.

Really useful to me. Thanks a thousand times

Very interesting! It will definitely set me and many more for success. highly recommended.

Thank you soo much sir, for the opportunity to express my skills

Usefull, thanks a lot. Really clear

Very nice and easy to understand. Thank you .

That was incredibly useful. Thanks Grad Coach Crew!

My stress level just dropped at least 15 points after watching this. Just starting my thesis for my grad program and I feel a lot more capable now! Thanks for such a clear and helpful video, Emma and the GradCoach team!

Do we need to mention the number of words the dissertation contains in the main document?

It depends on your university’s requirements, so it would be best to check with them 🙂

Such a helpful post to help me get started with structuring my masters dissertation, thank you!

Great video; I appreciate that helpful information

It is so necessary or avital course

This blog is very informative for my research. Thank you

Doctoral students are required to fill out the National Research Council’s Survey of Earned Doctorates

wow this is an amazing gain in my life

This is so good

How can i arrange my specific objectives in my dissertation?

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Guide to writing your thesis/dissertation, definition of dissertation and thesis.

The dissertation or thesis is a scholarly treatise that substantiates a specific point of view as a result of original research that is conducted by students during their graduate study. At Cornell, the thesis is a requirement for the receipt of the M.A. and M.S. degrees and some professional master’s degrees. The dissertation is a requirement of the Ph.D. degree.

Formatting Requirement and Standards

The Graduate School sets the minimum format for your thesis or dissertation, while you, your special committee, and your advisor/chair decide upon the content and length. Grammar, punctuation, spelling, and other mechanical issues are your sole responsibility. Generally, the thesis and dissertation should conform to the standards of leading academic journals in your field. The Graduate School does not monitor the thesis or dissertation for mechanics, content, or style.

“Papers Option” Dissertation or Thesis

A “papers option” is available only to students in certain fields, which are listed on the Fields Permitting the Use of Papers Option page , or by approved petition. If you choose the papers option, your dissertation or thesis is organized as a series of relatively independent chapters or papers that you have submitted or will be submitting to journals in the field. You must be the only author or the first author of the papers to be used in the dissertation. The papers-option dissertation or thesis must meet all format and submission requirements, and a singular referencing convention must be used throughout.

ProQuest Electronic Submissions

The dissertation and thesis become permanent records of your original research, and in the case of doctoral research, the Graduate School requires publication of the dissertation and abstract in its original form. All Cornell master’s theses and doctoral dissertations require an electronic submission through ProQuest, which fills orders for paper or digital copies of the thesis and dissertation and makes a digital version available online via their subscription database, ProQuest Dissertations & Theses . For master’s theses, only the abstract is available. ProQuest provides worldwide distribution of your work from the master copy. You retain control over your dissertation and are free to grant publishing rights as you see fit. The formatting requirements contained in this guide meet all ProQuest specifications.

Copies of Dissertation and Thesis

Copies of Ph.D. dissertations and master’s theses are also uploaded in PDF format to the Cornell Library Repository, eCommons . A print copy of each master’s thesis and doctoral dissertation is submitted to Cornell University Library by ProQuest.

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• Knowledge Base
• Dissertation

What Is a Dissertation? | Guide, Examples, & Template

A dissertation is a long-form piece of academic writing based on original research conducted by you. It is usually submitted as the final step in order to finish a PhD program.

Your dissertation is probably the longest piece of writing you’ve ever completed. It requires solid research, writing, and analysis skills, and it can be intimidating to know where to begin.

Your department likely has guidelines related to how your dissertation should be structured. When in doubt, consult with your supervisor.

You can also download our full dissertation template in the format of your choice below. The template includes a ready-made table of contents with notes on what to include in each chapter, easily adaptable to your department’s requirements.

Download Word template Download Google Docs template

• In the US, a dissertation generally refers to the collection of research you conducted to obtain a PhD.
• In other countries (such as the UK), a dissertation often refers to the research you conduct to obtain your bachelor’s or master’s degree.

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Table of contents

Dissertation committee and prospectus process, how to write and structure a dissertation, acknowledgements or preface, list of figures and tables, list of abbreviations, introduction, literature review, methodology, reference list, proofreading and editing, defending your dissertation, free checklist and lecture slides.

When you’ve finished your coursework, as well as any comprehensive exams or other requirements, you advance to “ABD” (All But Dissertation) status. This means you’ve completed everything except your dissertation.

Prior to starting to write, you must form your committee and write your prospectus or proposal . Your committee comprises your adviser and a few other faculty members. They can be from your own department, or, if your work is more interdisciplinary, from other departments. Your committee will guide you through the dissertation process, and ultimately decide whether you pass your dissertation defense and receive your PhD.

Your prospectus is a formal document presented to your committee, usually orally in a defense, outlining your research aims and objectives and showing why your topic is relevant . After passing your prospectus defense, you’re ready to start your research and writing.

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The structure of your dissertation depends on a variety of factors, such as your discipline, topic, and approach. Dissertations in the humanities are often structured more like a long essay , building an overall argument to support a central thesis , with chapters organized around different themes or case studies.

However, hard science and social science dissertations typically include a review of existing works, a methodology section, an analysis of your original research, and a presentation of your results , presented in different chapters.

Dissertation examples

We’ve compiled a list of dissertation examples to help you get started.

• Example dissertation #1: Heat, Wildfire and Energy Demand: An Examination of Residential Buildings and Community Equity (a dissertation by C. A. Antonopoulos about the impact of extreme heat and wildfire on residential buildings and occupant exposure risks).
• Example dissertation #2: Exploring Income Volatility and Financial Health Among Middle-Income Households (a dissertation by M. Addo about income volatility and declining economic security among middle-income households).
• Example dissertation #3: The Use of Mindfulness Meditation to Increase the Efficacy of Mirror Visual Feedback for Reducing Phantom Limb Pain in Amputees (a dissertation by N. S. Mills about the effect of mindfulness-based interventions on the relationship between mirror visual feedback and the pain level in amputees with phantom limb pain).

The very first page of your document contains your dissertation title, your name, department, institution, degree program, and submission date. Sometimes it also includes your student number, your supervisor’s name, and the university’s logo.

Read more about title pages

The acknowledgements section is usually optional and gives space for you to thank everyone who helped you in writing your dissertation. This might include your supervisors, participants in your research, and friends or family who supported you. In some cases, your acknowledgements are part of a preface.

Read more about acknowledgements Read more about prefaces

The abstract is a short summary of your dissertation, usually about 150 to 300 words long. Though this may seem very short, it’s one of the most important parts of your dissertation, because it introduces your work to your audience.

Your abstract should:

• State your main topic and the aims of your research
• Describe your methods
• Summarize your main results
• State your conclusions

Read more about abstracts

The table of contents lists all of your chapters, along with corresponding subheadings and page numbers. This gives your reader an overview of your structure and helps them easily navigate your document.

Remember to include all main parts of your dissertation in your table of contents, even the appendices. It’s easy to generate a table automatically in Word if you used heading styles. Generally speaking, you only include level 2 and level 3 headings, not every subheading you included in your finished work.

Read more about tables of contents

While not usually mandatory, it’s nice to include a list of figures and tables to help guide your reader if you have used a lot of these in your dissertation. It’s easy to generate one of these in Word using the Insert Caption feature.

Read more about lists of figures and tables

Similarly, if you have used a lot of abbreviations (especially industry-specific ones) in your dissertation, you can include them in an alphabetized list of abbreviations so that the reader can easily look up their meanings.

Read more about lists of abbreviations

In addition to the list of abbreviations, if you find yourself using a lot of highly specialized terms that you worry will not be familiar to your reader, consider including a glossary. Here, alphabetize the terms and include a brief description or definition.

Read more about glossaries

The introduction serves to set up your dissertation’s topic, purpose, and relevance. It tells the reader what to expect in the rest of your dissertation. The introduction should:

• Establish your research topic , giving the background information needed to contextualize your work
• Narrow down the focus and define the scope of your research
• Discuss the state of existing research on the topic, showing your work’s relevance to a broader problem or debate
• Clearly state your research questions and objectives
• Outline the flow of the rest of your work

Everything in the introduction should be clear, engaging, and relevant. By the end, the reader should understand the what, why, and how of your research.

Read more about introductions

A formative part of your research is your literature review . This helps you gain a thorough understanding of the academic work that already exists on your topic.

Literature reviews encompass:

• Finding relevant sources (e.g., books and journal articles)
• Assessing the credibility of your sources
• Critically analyzing and evaluating each source
• Drawing connections between them (e.g., themes, patterns, conflicts, or gaps) to strengthen your overall point

A literature review is not merely a summary of existing sources. Your literature review should have a coherent structure and argument that leads to a clear justification for your own research. It may aim to:

• Address a gap in the literature or build on existing knowledge
• Take a new theoretical or methodological approach to your topic
• Propose a solution to an unresolved problem or advance one side of a theoretical debate

Read more about literature reviews

Theoretical framework

Your literature review can often form the basis for your theoretical framework. Here, you define and analyze the key theories, concepts, and models that frame your research.

Read more about theoretical frameworks

Your methodology chapter describes how you conducted your research, allowing your reader to critically assess its credibility. Your methodology section should accurately report what you did, as well as convince your reader that this was the best way to answer your research question.

A methodology section should generally include:

• The overall research approach ( quantitative vs. qualitative ) and research methods (e.g., a longitudinal study )
• Your data collection methods (e.g., interviews or a controlled experiment )
• Details of where, when, and with whom the research took place
• Any tools and materials you used (e.g., computer programs, lab equipment)
• Your data analysis methods (e.g., statistical analysis , discourse analysis )
• An evaluation or justification of your methods

Read more about methodology sections

Your results section should highlight what your methodology discovered. You can structure this section around sub-questions, hypotheses , or themes, but avoid including any subjective or speculative interpretation here.

Your results section should:

• Concisely state each relevant result together with relevant descriptive statistics (e.g., mean , standard deviation ) and inferential statistics (e.g., test statistics , p values )
• Briefly state how the result relates to the question or whether the hypothesis was supported
• Report all results that are relevant to your research questions , including any that did not meet your expectations.

Additional data (including raw numbers, full questionnaires, or interview transcripts) can be included as an appendix. You can include tables and figures, but only if they help the reader better understand your results. Read more about results sections

Your discussion section is your opportunity to explore the meaning and implications of your results in relation to your research question. Here, interpret your results in detail, discussing whether they met your expectations and how well they fit with the framework that you built in earlier chapters. Refer back to relevant source material to show how your results fit within existing research in your field.

Some guiding questions include:

• What do your results mean?
• Why do your results matter?
• What limitations do the results have?

If any of the results were unexpected, offer explanations for why this might be. It’s a good idea to consider alternative interpretations of your data.

Read more about discussion sections

Your dissertation’s conclusion should concisely answer your main research question, leaving your reader with a clear understanding of your central argument and emphasizing what your research has contributed to the field.

In some disciplines, the conclusion is just a short section preceding the discussion section, but in other contexts, it is the final chapter of your work. Here, you wrap up your dissertation with a final reflection on what you found, with recommendations for future research and concluding remarks.

It’s important to leave the reader with a clear impression of why your research matters. What have you added to what was already known? Why is your research necessary for the future of your field?

Read more about conclusions

It is crucial to include a reference list or list of works cited with the full details of all the sources that you used, in order to avoid plagiarism. Be sure to choose one citation style and follow it consistently throughout your dissertation. Each style has strict and specific formatting requirements.

Common styles include MLA , Chicago , and APA , but which style you use is often set by your department or your field.

Create APA citations Create MLA citations

Your dissertation should contain only essential information that directly contributes to answering your research question. Documents such as interview transcripts or survey questions can be added as appendices, rather than adding them to the main body.

Read more about appendices

Making sure that all of your sections are in the right place is only the first step to a well-written dissertation. Don’t forget to leave plenty of time for editing and proofreading, as grammar mistakes and sloppy spelling errors can really negatively impact your work.

Dissertations can take up to five years to write, so you will definitely want to make sure that everything is perfect before submitting. You may want to consider using a professional dissertation editing service , AI proofreader or grammar checker to make sure your final project is perfect prior to submitting.

After your written dissertation is approved, your committee will schedule a defense. Similarly to defending your prospectus, dissertation defenses are oral presentations of your work. You’ll present your dissertation, and your committee will ask you questions. Many departments allow family members, friends, and other people who are interested to join as well.

After your defense, your committee will meet, and then inform you whether you have passed. Keep in mind that defenses are usually just a formality; most committees will have resolved any serious issues with your work with you far prior to your defense, giving you ample time to fix any problems.

As you write your dissertation, you can use this simple checklist to make sure you’ve included all the essentials.

Checklist: Dissertation

My title page includes all information required by my university.

I have included acknowledgements thanking those who helped me.

My abstract provides a concise summary of the dissertation, giving the reader a clear idea of my key results or arguments.

I have created a table of contents to help the reader navigate my dissertation. It includes all chapter titles, but excludes the title page, acknowledgements, and abstract.

My introduction leads into my topic in an engaging way and shows the relevance of my research.

My introduction clearly defines the focus of my research, stating my research questions and research objectives .

My introduction includes an overview of the dissertation’s structure (reading guide).

I have conducted a literature review in which I (1) critically engage with sources, evaluating the strengths and weaknesses of existing research, (2) discuss patterns, themes, and debates in the literature, and (3) address a gap or show how my research contributes to existing research.

I have clearly outlined the theoretical framework of my research, explaining the theories and models that support my approach.

I have thoroughly described my methodology , explaining how I collected data and analyzed data.

I have concisely and objectively reported all relevant results .

I have (1) evaluated and interpreted the meaning of the results and (2) acknowledged any important limitations of the results in my discussion .

I have clearly stated the answer to my main research question in the conclusion .

I have clearly explained the implications of my conclusion, emphasizing what new insight my research has contributed.

I have provided relevant recommendations for further research or practice.

If relevant, I have included appendices with supplemental information.

I have included an in-text citation every time I use words, ideas, or information from a source.

I have listed every source in a reference list at the end of my dissertation.

I have consistently followed the rules of my chosen citation style .

I have followed all formatting guidelines provided by my university.

Congratulations!

The end is in sight—your dissertation is nearly ready to submit! Make sure it's perfectly polished with the help of a Scribbr editor.

If you’re an educator, feel free to download and adapt these slides to teach your students about structuring a dissertation.

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How long is a Thesis or Dissertation? [the data] PhD, Masters +

Writing a thesis for your undergraduate, master’s, or PhD can be a very daunting task. Especially when you consider how long a thesis can get. However, not all theses are the same length and the expected submission length is dependent on the level of study that you are currently enrolled in and the field in which you are studying.

An undergraduate thesis is likely to be about 20 to 50 pages long. A Master’s thesis is likely to be between 30 and 100 pages in length and a PhD dissertation is likely to be between 50 and 450 pages long.

In the table below I highlight the typical length of an undergraduate, master’s, and PhD.

It is important to note that this is highly dependent on the field of study and the expectations of your university, field, and research group.

If you want to know more about how long a Masters thesis and PhD dissertation is you can check out my other articles:

• How Long is a Masters Thesis? [Your writing guide]
• How long is a PhD dissertation? [Data by field]
• How to write a masters thesis in 2 months [Easy steps to start writing]

These articles go into a lot more detail and specifics of each level of study, including master’s and doctoral degrees.

Let’s take a more detailed look at the length of a thesis or dissertation. We’ll start from the very basics including what a dissertation or thesis really is.

What exactly is a thesis or a dissertation?

A thesis or a dissertation is a research project that is typically required of students in order to gain an advanced degree.

A dissertation is usually much longer and more detailed than a thesis, but they both involve extensive research and provide an in-depth analysis of their given subject.

Many people use the term interchangeably but quite often a Masters level research project results in a thesis. While a PhD research project results in a much longer dissertation.

Thesis work is usually completed over the course of several months and can require multiple drafts and revisions before being accepted. These will be looked over by your supervisor to ensure that you are meeting the expectations and standards of your research field.

PhD Dissertations are typically even more involved, taking years to complete. My PhD took me three years to complete but it is usual for them to take more than five years.

Both a thesis and a dissertation involve researching a particular topic, formulating an argument based on evidence gathered from the research, and presenting the findings in written form for review by peers or faculty members.

My Master’s thesis was reviewed by the chemistry Department whilst my PhD thesis was sent to experts in the field around the world.

Ultimately, these experts provide a commentary on whether or not you have reached the standards required of the University for admittance into the degree and the final decision will be made upon reviewing these comments by your universities graduation committee.

There are several outcomes including:

• accepted without changes – this is where you must make no changes to your thesis and is accepted as is.
• accepted with minor changes this is where your thesis will require some minor changes before being admitted to the degree. Usually, it is not sent back to the reviewers after the thesis defence.
• Major changes – this is where the committee has decided that you need to rework a number of major themes in your thesis and will likely want to see it at a later stage.
• Rejected – this is where the dissertation or thesis is rejected and the recommendation to downgrade your degree program is made.

What is the typical length of a thesis or dissertation?

The length of a thesis or dissertation varies significantly according to the field of study and institution, especially in social sciences.

Generally, an undergraduate thesis is between 20-50 pages long while a PhD dissertation can range from 90-500 pages in length.

However, longer is not necessarily better as a highly mathematical PhD thesis with proofs may only be 50 pages long.

It also depends on the complexity of the topic being studied and the amount of research required to complete it.

A PhD dissertation should contain as many pages and words as it takes to outline the current state of your field and provide adequate background information, present your results, and provide confidence in your conclusions. A PhD dissertation will also contain figures, graphs, schematics, and other large pictorial items that can easily inflate the page count.

Here is a boxplot summary of many different fields of study and the number of pages of a typical PhD dissertation in the field, including social sciences.  It has been created by Marcus Beck  from all of the dissertations at the University of Minnesota.

Typically, the mathematical sciences, economics, and biostatistics theses and dissertations tend to be shorter because they rely on mathematical formulas to provide proof of their results rather than diagrams and long explanations.

On the other end of the scale, English, communication studies, political science, history and anthropology are often the largest theses in terms of pages and word count because of the number of words it takes to provide proof and depth of their results.

At the end of the day, it is important that your thesis gets signed off by your review committee and other experts in the field. Your supervisor will be the main judge of whether or not your dissertation is capable of satisfying the requirements of a master’s or doctoral degree in your field. 

How Many Pages Should a Master or PhD Thesis Have? Length of a thesis?

The length of a master’s thesis can vary greatly depending on the subject and format.

Generally, a masters thesis is expected to be around 100 pages long and should include:

• a title page,
• table of contents,
• introduction,
• literature review, 
• main test and body of work, 
• discussions and citations,
• conclusion,
• bibliography
• and (sometimes) appendix.

Your supervisor should provide you with a specific format for your dissertation or thesis that you are expected to follow.

Depending on your field of study and the word count specified by your supervisor, these guidelines may change. The student must ask their advisor for examples of past student thesis and doctoral dissertations. 

For example, if there is a limited number of words allowed in the thesis then it may not be possible to have 100 pages or more for the thesis.

Additionally, if you are including a lot of technical information such as diagrams or tables in the appendix of your dissertation or thesis, then this could increase the page count as well. For example, my PhD thesis contained a page like the one below.

This page only contains images from atomic force microscopy. Because my PhD was very visual, many pages like this exist.

Ultimately it is important to consult with your supervisor and determine how many pages your master’s thesis or PhD dissertation will be expected to have.

How long does it take to write a graduate thesis? Write your thesis quickly

Writing a graduate thesis can be a daunting task.

It is typically expected to take anywhere from one to three years, depending on the subject and scope of the project.

However, this is not just writing. A typical thesis or dissertation will require you to:

• formulate a research question
• do a literature review
• create research methodology
• perform original research
• collect and analyse results
• write peer-reviewed research papers
• write a PhD/masters thesis
• submit thesis and respond to examiners comments.

The actual writing component of a thesis or dissertation can take anywhere from one month to 6 months depending on how focused the PhD student is.

The amount of time it takes to write a thesis or dissertation can vary based on many factors, such as the type of research required, the length of the project, and other commitments that may interfere with progress.

Some students may have difficulty focusing or understanding their topic which can also add to the amount of time it takes to complete the project.

Regardless, writing a thesis is an important part of obtaining a graduate degree and should not be taken lightly.

It requires dedication and determination in order for one to successfully complete a thesis or dissertation within an appropriate timeframe.

In my YouTube video, below, I talk about how to finish your thesis or dissertation quickly:

It is full of a load of secrets including owning your day, managing your supervisor relationship, setting many goals, progress over perfection, and working with your own body clock to maximise productivity.

Wrapping up

This article has been through everything you need to know about the typical length of a dissertation or thesis.

The answer to this question is highly dependent on your field of study and the expectations of your supervisor and university.

Frequently Asked Questions: How Long is a Thesis

How long is a thesis.

A thesis is typically a document submitted in support of an academic degree, presenting the author’s research and findings. The length of a thesis can vary depending on the level of study and specific requirements of the institution. It can range from 60 – 100 pages for a master’s thesis to several hundred pages for a doctoral dissertation.

What is the difference between a thesis and a dissertation?

While the terms thesis and dissertation are often used interchangeably, they can have different meanings depending on the region or academic context. In some countries, a thesis is associated with a bachelor’s or master’s degree, while a dissertation is typically required for a doctoral degree.

Is there a specific word count for a thesis?

While there is no universal word count for a thesis , institutions may provide guidelines on the expected length based on the type of degree and academic discipline. It’s essential to adhere to the specified word count to meet academic standards.

How does the length of a thesis vary across different fields of study?

The length of a thesis can differ based on the field of study and the nature of the research being conducted. For example, a thesis in the social sciences may be shorter compared to one in a scientific or technical field that requires extensive data analysis and documentation.

Dr Andrew Stapleton has a Masters and PhD in Chemistry from the UK and Australia. He has many years of research experience and has worked as a Postdoctoral Fellow and Associate at a number of Universities. Although having secured funding for his own research, he left academia to help others with his YouTube channel all about the inner workings of academia and how to make it work for you.

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• Formatting Your Dissertation
• Introduction

Harvard Griffin GSAS strives to provide students with timely, accurate, and clear information. If you need help understanding a specific policy, please contact the office that administers that policy.

• Application for Degree
• Credit for Completed Graduate Work
• Ad Hoc Degree Programs
• Acknowledging the Work of Others
• Dissertation Advisory Committee
• Publishing Options
• Subject, Invention, and Patents
• Submitting Your Dissertation
• English Language Proficiency
• PhD Program Requirements
• Secondary Fields
• Year of Graduate Study (G-Year)
• Master's Degrees
• Grade and Examination Requirements
• Conduct and Safety
• Financial Aid
• Non-Resident Students
• Registration
• Residence Halls
• Student Groups

When preparing the dissertation for submission, students must meet the following minimum formatting requirements. The Registrar’s Office will review the dissertation for compliance and these formatting elements and will contact the student to confirm acceptance or to request revision. The Harvard Griffin GSAS resource on dissertation formatting best practices expands on many of the elements below.

Please carefully review your dissertation before submitting it to ProQuestETD. The Registrar’s Office will email you through ProQuest if they have identified major formatting errors that need correction. Students will be provided with a brief extended deadline to make only the requested formatting updates.  

• Embedded Fonts : If fonts are not embedded, non-English characters may not appear as intended. It is the student’s responsibility to make sure that fonts are embedded properly prior to submission. Instructions for embedding fonts can be found on the Dissertation Formatting Guidance resource .  
• Thesis Acceptance Certificate: A copy of the Thesis Acceptance Certificate (TAC) should appear as the first page. This page should not be counted or numbered. The TAC will appear in the online version of the published dissertation. The author name and date on the TAC and title page should be the same.  
• Title Page: The dissertation begins with the title page; the title should be as concise as possible and should provide an accurate description of the dissertation. The author name and date on the TAC and title page should be the same. Do not print a page number on the title page. It is understood to be page  i  for counting purposes only. 
• Abstract : An abstract, numbered as page  iii , should immediately follow the copyright page and should state the problem, describe the methods and procedures used, and give the main results or conclusions of the research. The abstract will appear in the online version of the dissertation and will be made available by ProQuest and DASH. There is no maximum word count for the abstract.  
• Preliminary pages (abstract, table of contents, list of tables, graphs, illustrations, and preface) should use small Roman numerals (i, ii, iii, iv, v, etc.). 
• All pages must contain text or images.  
• Count the title page as page i and the copyright page as page ii, but do not print page numbers on either page. 
• For the body of text, use Arabic numbers (1, 2, 3, 4, 5, etc.) starting with page 1 on the first page of text.
• Page numbers must be centered throughout the manuscript at the top or bottom. 
• Every numbered page must be consecutively ordered, including tables, graphs, illustrations, and bibliography/index (if included); letter suffixes (such as 10a, 10b, etc.) are not allowed. 
• It is customary not to have a page number on the page containing a chapter heading. Check pagination carefully. Account for all pages. 
• Copyright Statement: A copyright notice should appear on a separate page immediately following the title page and include the copyright symbol ©, the year of first publication of the work, and the name of the author: © [ year ] [ Author’s Name ]. All rights reserved. Alternatively, students may choose to license their work openly under a Creative Commons license. The author remains the copyright holder while at the same time granting upfront permission to others to read, share, and—depending on the license—adapt the work so long as proper attribution is given. (If a student chooses a Creative Commons license, the copyright statement must not include the “all rights reserved” disclaimer and should instead indicate the specific Creative Commons license.) Please note: The copyright statement applies only to the student’s own work; the copyright status of third-party material incorporated into the dissertation will not change. Do not  print a page number on the copyright page. It is understood to be page  ii  for counting purposes only. 
• Abstract 
• Table of Contents 
• Front Matter 
• Body of Text 
• Back Matter 

Students can refer to the resource on Dissertation Formatting Best Practice Resource for information on best practices for front and back matter

Individual academic programs may require additional formatting elements to meet the standards of a specific field or discipline. Students are responsible to ensure that their Dissertation Advisory Committee is in support of the final formatting as signified by the sign off on the Thesis Acceptance Certificate. Any deviation from these requirements may lead to rejection of the dissertation and delay in the conferral of the degree. 

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• A Guide to Writing a PhD Thesis

Written by Ben Taylor

A PhD thesis is a work of original research all students are requiured to submit in order to succesfully complete their PhD. The thesis details the research that you carried out during the course of your doctoral degree and highlights the outcomes and conclusions reached.

The PhD thesis is the most important part of a doctoral research degree: the culmination of three or four years of full-time work towards producing an original contribution to your academic field.

Your PhD dissertation can therefore seem like quite a daunting possibility, with a hefty word count, the pressure of writing something new and, of course, the prospect of defending it at a viva once you’ve finished.

This page will give you an introduction to what you need to know about the doctoral thesis, with advice on structure, feedback, submission and more.

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Beginning your phd thesis.

The first stage of your PhD thesis will usually be the literature review . We’ve already written a detailed guide to what the PhD literature review involves , but here’s what you need to know about this stage of your PhD:

• The literature review is a chance for you to display your knowledge and understanding of what’s already been written about your research area – this could consist of papers, articles, books, data and more
• Rather than simply summarising what other scholars have said about your subject, you should aim to assess and analyse their arguments
• The literature review is usually the first task of your PhD – and typically forms the first part or chapter of your dissertation

After finishing your literature review, you’ll move onto the bulk of your doctoral thesis. Of course, you’ll eventually return to the lit review to make sure it’s up-to-date and contains any additional material you may have come across during the course of your research.

PhD thesis research

What sets your PhD thesis apart from previous university work you’ve done is the fact that it should represent an original contribution to academic knowledge . The form that this original contribution takes will largely depend on your discipline.

• Arts and Humanities dissertations usually involve investigating different texts, sources and theoretical frameworks
• Social Sciences are more likely to focus on qualitive or quantitative surveys and case studies
• STEM subjects involve designing, recording and analysing experiments, using their data to prove or disprove a set theory

Depending on the nature of your research, you may ‘write up’ your findings as you go, or leave it until the dedicated ‘writing-up’ period, usually in the third year of your PhD. Whatever your approach, it’s vital to keep detailed notes of your sources and methods – it’ll make your life a lot easier when it comes to using references in your dissertation further down the line.

PhD thesis vs dissertation

It’s common to use the terms ‘thesis’ and ‘dissertation’ interchangeably, but strictly speaking there is a difference in meaning between them:

• Your thesis is your argument. It’s the conclusions you’ve arrived at through surveying existing scholarship in your literature review and combining this with the results of your own original research.
• Your dissertation is the written statement of your thesis. This is where you lay out your findings in a way that systematically demonstrates and proves your conclusion.

Put simply, you submit a dissertation, but it’s the thesis it attempts to prove that will form the basis of your PhD.

What this also means is that the writing up of your dissertation generally follows the formulation of your doctoral thesis (it’s fairly difficult to write up a PhD before you know what you want to say!).

However, it’s normal for universities and academics to use either (or both) terms when describing PhD research – indeed, we use both ‘thesis’ and ‘dissertation’ across our website.

Can I use my Masters research in my PhD thesis?

If you’re studying an MPhil, it’s normal to ‘ upgrade ’ it into a PhD. Find mroe information on our guide.

PhD thesis structure

Having completed your initial literature review and conducted your original research, you’ll move onto the next phase of your doctoral dissertation, beginning to sketch out a plan that your thesis will follow.

The exact structure and make-up of your doctoral thesis will vary between fields, but this is the general template that many dissertations follow:

• Introduction – This sets out the key objectives of your project, why the work is significant and what its original contribution to knowledge is. At this point you may also summarise the remaining chapters, offering an abstract of the argument you will go on to develop.
• Literature review – The introduction will generally lead into a write-up of your literature review. Here you’ll outline the scholarly context for your project. You’ll acknowledge where existing research has shaped your PhD, but emphasise the unique nature of your work.
• Chapters – After you’ve finished introducing your research, you’ll begin the bulk of the dissertation. This will summarise your results and begin explaining the argument you have based on them. Some PhDs will also include specific chapters on methodology and / or a recreation of the data you have developed. Others will develop your argument over a series of stages, drawing on sources and results as relevant.
• Conclusion – The dissertation will end with a final chapter that pulls together the different elements of your argument and the evidence you have provided for it. You’ll restate the significance of your project (and its all-important original contribution to knowledge). You may also take the opportunity to acknowledge the potential for further work or opportunities to apply your findings outside academia.
• Bibliography and appendices – At the end of your thesis, you’ll need to include a full list of the books, articles and data you’ve referenced in a bibliography. You may also need to provide additional information in the form of an appendix.

How long is a PhD thesis?

The length of a PhD thesis varies from subject to subject, but all are far longer than those for undergraduate or Masters degrees. Your university will usually set an upper limit – typically between 70,000 and 100,000 words, with most dissertations coming in at around 80,000 words.

Generally speaking, STEM-based theses will be a little shorter than those in the Arts, Humanities and Social Sciences.

Different universities (and departments) will have different policies regarding what counts towards the PhD thesis word count, so make sure you’re aware what is expected of you. Check with your supervisor whether references, the bibliography or appendices are included in the word count for your dissertation.

How many chapters should a PhD thesis have?

There’s no hard and fast rule for the numbers of chapters in a PhD thesis, but most will have four or five chapters (in addition to the introduction and conclusion). This is the sort of thing you’ll discuss with your supervisor when planning out your research.

Writing up your PhD thesis

Once you’ve conducted your research and settled upon your thesis, there’s only one thing left to do: get it down on paper. Appropriately enough, this final part of a PhD is often referred to as the ‘ writing up period ’.

This is when you produce the final dissertation, which will be submitted as the basis for your viva voce exam. The nature of this task can vary from PhD to PhD.

In some cases you may already have a large amount of chapter drafts and other material. ‘Writing up’ therefore becomes a process of re-drafting and assembling this work into a final dissertation. This approach is common in Arts and Humanities subjects where PhD students tend to work through stages of a project, writing as they go.

Alternatively, you may have spent most of your PhD collecting and analysing data. If so, you’ll now ‘write up’ your findings and conclusions in order to produce your final dissertation. This approach is more common in STEM subjects, where experiment design and data collection are much more resource intensive.

Whatever process you adopt, you’ll now produce a persuasive and coherent statement of your argument, ready to submit for examination.

PhD thesis feedback

Your supervisor will usually give you feedback on each chapter draft, and then feedback on the overall completed dissertation draft before you submit it for examination. When the thesis is a work-in-progress, their comments will be a chance for them to make sure your research is going in the right direction and for you to ask their advice on anything you’re concerned about. This feedback will normally be given in the form of a supervisory meeting.

Although your PhD supervisor will be happy to give you advice on your work, you shouldn’t expect them to be an editor – it’s not their responsibility to correct grammatical or spelling mistakes, and you should make sure any drafts you submit to them are as error-free as possible. Similarly, they won’t be willing to edit your work down to fit a particular word count.

Finishing your PhD thesis

When you’ve finished the final draft of your doctoral thesis and it’s been approved by your supervisor, you’ll submit it for examination. This is when it’s sent to the examiners who will conduct your viva.

Submitting your thesis involves printing enough copies for your examiners and the university’s repository. Don’t leave this until the last minute – printing multiple copies of a 300-page document is a substantial undertaking and you should always allow enough time to account for any possible glitches or issues with the printing process.

Your viva will usually take place within three months of submitting your thesis. You can find out more in our dedicated guide to the PhD viva . After your viva, your examiners will give you a report that confirms whether or not you need to make any changes to your thesis, with several different potential outcomes:

• Pass – You’ve received your doctoral qualification!
• Minor corrections – These are usually fairly small edits, tweaks and improvements to your thesis, which you’ll be given three months to implement
• Major corrections – For these substantial changes, you may have to rewrite part of your dissertation or complete extra research, with a six-month deadline

Most PhD students will need to fix some corrections with their thesis (hopefully not major ones). It’s very rare for a dissertation to be failed.

Once you’ve made any necessary changes to your thesis, you’ll submit it one last time (usually electronically).

If you have plans to publish all or part of your work, you may want to request an embargo so that it won’t be visible to the public for a certain time. 12 months is a fairly standard time period for this, although you may want to ask for a longer embargo if you know that you want to turn your thesis into a book or monograph.

Take a look at our programme listings and find the perfect PhD for you.

Our postgrad newsletter shares courses, funding news, stories and advice

Ben worked in the FindAPhD content team from 2017 to 2022, starting as an Assistant Content Writer and leaving as Student Content Manager. He focused on producing well-researched advice across a range of topics related to postgraduate study. Ben has a Bachelors degree in English Literature from the University of Sheffield and a Masters from the University of Amsterdam. Having also spent a semester at the University of Helsinki through the Erasmus programme, he’s no stranger to study abroad (or cold weather!).

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How long should be a Doctoral Dissertation or Thesis?

A doctoral dissertation or thesis should be of 50,000 to 80,000 words and should not exceed 1,00,000 words having around 150 to 230 pages. 

“One size can’t fit to all.”  

A fat person can’t fit into a lean person’s trouser, isn’t he?

The same is true for the most important academic essay as well, the PhD thesis or dissertation or we can say a doctoral dissertation.

The present article illustrates how long should be a PhD dissertation! the number of words, number of chapters and pages. We will also discuss what should be your thesis length and how you can decide it. But before that let’s understand the concept of a doctoral dissertation or thesis. 

The doctoral dissertation or thesis is almost the same kind of thing! Some universities prefer to say it as “dissertation” while others say it “a thesis” but ideally, as per the USA PhD structure, the dissertation is considered as a short essay and often applied to denote a thesis to award the master degree.

Notwithstanding, we can use either term to indicate a PhD essay.  Either a thesis or dissertation, any of it can be used. So don’t confuse yourself. 

The PhD dissertation is an academic essay, structured, formal and concise and precisely written. The whole thesis must be divided into specific chapters each one includes specific information. 

For example, the introduction chapter includes general information only while the review chapter must include literature and reviews of all related topics. 

The content of the dissertation may vary from chapter to chapter that we will discuss later on. Sections of every PhD dissertation have a definite content and length as well, and therefore the whole thesis has a definite length. 

The criteria to write a PhD dissertation (what to write and how to write) vary among universities, some prefer longer essays while some shorter. Let’s not confuse things and let directly into the topic, 

Read more: 12 Proven Practical Tips for Academic Writing .

How long should be a doctoral dissertation or thesis? 

The ideal length of the doctoral dissertation is between 50,000 to 80,000 (actually), however, should not exceed 1,00,000 words.

Do you know?  “A New Determination of Molecular Dimensions” is a thesis title of Albert Einstein which has only 17 pages .

The whole doctoral dissertation divides into sections like background (commonly an introduction), review, methods, results, discussion and conclusion. 

Besides, Acknowledgement, preface, abstract, index, list of images, list of tables and title page and other pages are there in the thesis but can’t be included in the core content of the doctoral dissertation. 

In accordance with the number of pages, a typical thesis has a minimum of 180 and a maximum of 300 pages with an average of 230 pages per dissertation and consider as the ideal length of the doctoral dissertation. 

However, here are some of the factors upon which the length of the thesis is decided. 

• The subject chosen
• The topic of the doctoral dissertation 
• University selected 

The length of the thesis varies among subjects as some need longer, in-depth explanation whilst some only contain equations or mathematical calculations. 

Usually, dissertations of humanities such as history, language and social science are long around 1,00,000 to 1,20,000 words. On the other side, the dissertation of STEM ( Science, Technology, Engineering and Mathematics) are shorter around 50,000 to 80,000 words. 

Here is the graph of the number of pages and length of the thesis in different subjects. 

Another factor is a topic chosen by the prospective student. The length of the doctoral dissertation also depends on a topic selected, independent of the subject. 

For example, some topics are shorter and “require to the point” explanation, topics of maths and physics are based on equations and calculations henceforth those theses ideally might be shorter than other topics. 

On the other side, a topic that includes not only scientific experiments but also physics or maths and social benefits are usually longer. The reason is that prospective students need to explain the science behind that and its importance for society as well. So it may be huge. 

Related article: 16 Proven Tips to Write a Thesis for PhD .

The style of writing, length and structure of dissertation may vary among universities. Universities have their own style and students have to write their thesis accordingly.

Do you know?  David Rector’s thesis entitled, “An unstable Adams Spectral Sequence” is the shortest thesis in the world having only 9 pages (as per the MIT library of thesis). 

Note that the quality of the doctoral dissertation isn’t associated with the length of it. Consequently, a longer thesis isn’t mean quality work whilst a shorter thesis isn’t mean poor work! 

Plenty of research data are available on the length of the doctoral dissertation and the number of pages but interestingly, conclude nothing! 

This means, research conduct on 1000 student show that the thesis should have 1,00,000 pages doesn’t infer that you have to write a dissertation of exactly having the same length.

Dr Eva Lantsoght had conducted a poll on Twitter on “what was the word count of your dissertation?” 

34% of students voted that their thesis is 80,000 to 1,20,000 words long while 21% of students voted to have a dissertation length of fewer than 40,000 words. However, the study is irrelevant as students aren’t categorized based their subjects. (but it’s just a Twitter Poll!). 

As we said, the number of pages or words may deviate among universities, for example, ideally Cambridge university allow 80,000 words in a typical dissertation, however, in the same university the criteria for biology PhD thesis is 60,000 (as per their official website information).

Note that special permission is needed when students exceeds more than the limit decided.

Similarly, Oxford university and Harvard university advised dissertation length of 1,00,000 and 100 to 300 pages, respectively.

No such data or studies define how long exactly a doctoral dissertation should be because as we said, it’s not a major criterion in any university. If you write a thesis in either fewer or more words, the university will never reject it or fail you, based on that. 

Irrespective of the length of the dissertation, it must justify the research work done by the prospective candidate. If the examiner thinks that the thesis is too long, they advise you to make it shorter and vice versa, no issue in that. 

The only thing matter is that the work should be worth award-winning. However, some universities are strict against the length of the doctoral dissertation. Students need prior permission if their thesis excess the length decided by the university. For example, at Cambridge University, the length of a doctorate dissertation is fixed for different subjects. When exceeded, one has to take permission prior to submit the thesis. 

Do you know?  Historian Joachim Schuhmacher had written the world’s longest thesis having 2,654 pages. 

Now let us discuss how the length of a doctorate dissertation is decided? 

The answer to this question gives you an idea of “how many words you have to write”. A single thesis page should have around 325 to 333 pages when using Times New Roman font and double spacing (as per the MLA and APA formate ). 

When you write 100 pages it comprises 33, 300 words so when we write 250 pages, it comprises around 83,250 words. 

It means one should have to write around 60,000 to 70,000 words (220 to 230) pages for getting a doctoral degree. Again, keep in mind, not the length, the quality of research work and writing precision decides the fate of a student. 

Importantly, the ideal length of what we are discussing here only comprises content, we haven’t included other important pages such as a preface, acknowledgment, title page or other related pages. Those are single pages and must be labeled in italic, not in numbers. 

Refer university’s official circular or terms and conditions before applying as well as submitting a thesis. Do not trust blindly what others are doing.

Conclusion: 

What is the conclusion of the present topic? You may wonder I will advise you on how long a doctoral dissertation will be. Right! Well, in that case, I strongly recommended to contact the university and ask to the PhD department regarding requirements.

Keep in mind quality of research matter more rather than the quantity of writing. Still, you need to write a doctoral dissertation longer enough to evaluate.  

“Don’t consider yourself as Einstein or David Rector.”

Dr. Tushar Chauhan is a Scientist, Blogger and Scientific-writer. He has completed PhD in Genetics. Dr. Chauhan is a PhD coach and tutor.

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This page is about how to turn your research (once it's done) into a readable multi-chapter document. You need to figure out what to include, how to organize it, and how to present it.

Following this advice will make me happier about reading your submitted or draft dissertation. You may find it useful even if I'm not going to read your dissertation.

Many others have written usefully on this subject , including someone in the Annals of Improbable Research . There's also advice on writing a thesis proposal . However, this page focuses on what a finished dissertation should look like. You could also skim good dissertations on the web.

What Goes Into a Dissertation?

A typical thesis will motivate why a new idea is needed, present the cool new idea, convince the reader that it's cool and new and might apply to the reader's own problems, and evaluate how well it worked. Just like a paper!

The result must be a substantial, original contribution to scientific knowledge. It signals your official entrance into the community of scholars. Treat it as an chance to make a mark, not as a 900-page-tall memorial to your graduate student life.

Beyond stapling

The cynical view is that if you've written several related papers, you staple them together to get a dissertation. That's a good first-order approximation -- you should incorporate ideas and text from your papers. But what is it missing?

First, a thesis should cohere -- ideally, it should feel like one long paper. Second, it should provide added value: there should be people who would prefer reading it to simply reading your papers. Otherwise writing it would be a meaningless exercise.

Here's what to do after stapling:

Taking Responsibility

Don't expect your advisor to be your co-author. It's your Ph.D.: you are sole author this time and the responsibility is on your shoulders. If your prose is turgid or thoughtless, misspelled or ungrammatical, oblivious or rude to related research, you're the one who looks bad.

You can do it! Your advisor and committee are basically on your side -- they're probably willing to make suggestions about content and style -- but they are not obligated to fix problems for you. They may send your dissertation back and tell you to fix it.

In the following sections, I'll start with advice about the thesis as a whole, and work downward, eventually reaching small details such as typography and citations.

Know Your Audience

First, choose your target audience. That crucial early decision will tell you what to explain, what to emphasize, and how to phrase and organize it. Checking it with your advisor might be wise.

Pretty much everything in your thesis should be relevant to your chosen audience. Think about them as you write. Ask yourself:

What does your audience already know?

You can also safely assume that your readers have some prior familiarity with your research area. Just how much familiarity, and with which topics, is a judgment call -- again, you have to decide who your intended audience is.

In practice, your audience will be somewhat mixed. Up to a point, it is possible to please both beginners and experts -- by covering background material crisply and in the service of your own story . How does that work? As you lay out the motivation for your own work, and provide notation, you'll naturally have to discuss background concepts and related work. But don't give a generic review that someone else could have written! Discuss the background in a way that motivates and clarifies your ideas. Present your detailed perspective on the intellectual landscape and where your own work sits in it -- a fresh (even opinionated) take that keeps tying back to your main themes and will be useful for both experts and beginners.

In short, be as considerate as you can to beginners without interrupting the flow of your main argument to your established colleagues. A good rule of thumb is to write at the level of the most accessible papers in the journals or conference proceedings that you read.

What do you want your audience to learn from the thesis?

You should set clear goals here. Just like a paper or a talk, your dissertation needs a point: it should tell a story. Writing the abstract and chapter 1 at the start will help you work out what that story is.

You may find that you have to do further work to really support your chosen story: more experiments, more theorems, reading more literature, etc.

What does your audience hope to get out of the thesis?

Why does anyone crack open a dissertation, anyway? I sometimes do. Especially for areas that I know less well, a dissertation is often more accessible than shorter, denser papers. It takes a more leisurely pace, provides more explicit motivation and background, and answers more of the questions that I might have.

There are other reasons I might look at your dissertation:

For students, reading high-quality dissertations is a good way to learn an area and to see what a comprehensive treatment of a problem looks like. Noah A. Smith once ran a graduate CS seminar in which the students read 8 dissertations together. Each student was also required to select and summarize yet another dissertation and write a novel research proposal based on it.

Readers with different motivations may read your thesis in different ways. The strong convention is that it's a single document that must read well from start to finish -- your committee will read it that way. But it's worth keeping other readers in mind, too. Some will skim from start to finish. Some will read only the introductory and concluding chapters (so make sure those give a strong impression of what you've done and why it's important). Some will read a single chapter in the middle, going back for definitions as needed. Some will scan or search for what they need: a definition, example, table of results, or literature review. Some will flip through to get a general sense of your work or of how you think, reading whatever catches their eye.

High-Level Organization

Once you've chosen your target audience, you should outline the structure of the thesis. Again, the convention is that the document must read well from start to finish.

The "canonical organization" is sketched by Douglas Comer near the end of his advice . Read that: you'll probably want something like it. A few further tips:

Keep your focus

Keep your focus. Length is not a virtue unless the content is actually interesting. You do have as much space as you need, but the reader doesn't have unlimited time and neither do you.

Get to the good stuff

A newspaper, like a dissertation, is a hefty chunk of reading. So it puts the most important news on page one, and leads each article with the most important part. You should try to do the same when reasonable.

Get to the interesting ideas as soon as possible. A good strategy is to make Chapter 1 an overview of your main arguments and findings. Tell your story there in a compelling way, including a taste of your results. Refer the reader to specific sections in later chapters for the pesky details. Chapter 1 should be especially accessible (use examples): make it the one chapter that everyone should read.

Include a road map

Chapter 1 traditionally ends with a "road map" to the rest of the thesis, which rapidly summarizes what the remaining chapters or sections will contain. That's useful guidance for readers who are looking for something specific and also for those who will read the whole thesis. It also exhibits in one place what an awful lot of work you've done. Here's a detailed example .

Where to put the literature review

I recommend against writing "Chapter 2: Literature Review." Such chapters are usually boring: they're plonked down like the author's obligatory list of what he or she was "supposed" to cite. They block the reader from getting to the new ideas, and can't even be contrasted with the new ideas because those haven't been presented yet.

A better plan is to discuss related literature in conjunction with your own ideas. As you motivate and present your ideas, you'll want to refer to some related work anyway.

Each chapter might have its own related work section or sections, covering work that connects to yours in different ways.

Where to define terminology and notation

Basic terminology, concepts, and notation have to be defined somewhere. But where? You can mix the following strategies:

Retail. You can define some terms or notation individually, when the reader first needs them. Then they will be well-motivated and fresh in the reader's mind. If you use them again later, you can refer back to the section where you first defined them.

Wholesale. On the other hand, there are advantages to aggregating some of your fundamental definitions into a "Definitions" section near the start of the chapter, or a chapter near the start of the dissertation:

The downside is that such sections or chapters can seem boring and full of not-yet-motivated concepts. Unless your definitions are novel and interesting in themselves, they block the reader from getting to the new and interesting ideas. So if you write something like "Chapter 2: Preliminaries," keep it relatively concise -- the point is to get the reader oriented.

Thrift shop. Use well-known notation and terminology whenever you can, either with or without a formal definition in your thesis. The point of your thesis is not to re-invent notation or to re-present well-known material, although sometimes you may find it helpful to do so.

Make Things Easy on Your Poor Readers

Now we get down to the actual writing. A dissertation is a lot to write. But it's also an awful lot to read and digest at once! You can keep us readers turning pages and following your argument. But it's a bigger and more complicated argument than usual, so you have to be more disciplined than usual.

Break it down

Long swaths of text are like quicksand for readers (and writers!). To keep us moving without sinking, use all the devices at your disposal to break the text down into short chunks. Ironically, short chunks are more helpful in a longer document. They keep your argument tightly organized and keep the reader focused and oriented.

If a section or subsection is longer than 1 double-spaced page , consider whether you could break it down further. I'm not joking! This 1-page threshold may seem surprisingly short, but it really makes writing and reading easier. Some devices you can use:

subsectioning Split your section into subsections (or subsubsections) with meaningful titles that keep the reader oriented.

lists If you're writing a paragraph and feel like you're listing anything (e.g., advantages or disadvantages of some approach), then use an explicit bulleted list. Sometimes this might yield a list with only 2 or 3 rather long bullet points, but that's fine -- it breaks things down. ( Note: To replace the bullets with short labels, roughly as in the list you're now reading, LaTeX's itemize environment lets you write \item[my label] .)

labeled paragraphs Label a series of paragraphs within the section, as a kind of lightweight subsectioning. Your experimental design section might look like this (using the LaTeX \paragraph command):

Participants. The participants were 32 undergraduates enrolled in ... Apparatus. Each participant wore a Star Trek suit equipped with a Hasbro-brand Galactic Translator, belt model 3A ... Procedure. The subjects were seated in pairs throughout the laboratory and subjected to Vogon poetry broadcast at 3-minute intervals ... Dataset. The Vogon poetry corpus (available on request) was obtained by passing the later works of T. S. Eliot through the Systran translation system ...

footnotes Move inessential points to footnotes. If they're too long for that, you could move them into appendices or chapters near the end of the thesis. (Here's my take on footnotes .)

captions Move some discussion of figures and tables into their captions. Figures and tables should be clearly structured in the first place: e.g., graphs should have labeled axes with units. But a helpful caption provides guidance on how to interpret the figure or table and what interesting conclusions to draw from it. The figure or table should itself include helpful labels (axis

(In LaTeX, you can write \caption[short version]{long version} . The optional short version argument will be used for the "List of Tables" or "List of Figures" at the start of the thesis.)

theorems Even simple formal results can be stated as a theorem or lemma. The theorem (and proof, if included) form a nice little chunk, using the LaTeX theorem enviroment.

Breaking down equations

Long blocks of equations are even more intimidating than long swaths of text. You can break those apart, too:

Intersperse short bits of text for guidance (perhaps using LaTeX \intertext ). You might introduce line 3 of your formula with

A change of variable from x to log x now allows us to integrate by parts:

Distinguish conceptually important steps from finicky steps that just push symbols around. You can even move finicky steps to a footnote, like this:

Some algebraic manipulation 5 allows us to simplify to the following:

Use visual devices like color, boldface, underlining, boxes, or \underbrace to call attention to significant parts of a formula:

Simplify the formulas in the first place by defining intermediate quantities or adopting notational conventions (e.g., "the t subscript will be dropped when it is clear from context").

Now tie it back together

Now that you've chopped your prose into bite-sized chunks, what binds it together?

Coherent and explicit structure

Your paragraphs and chunks have to tie together into a coherent argument. Do everything you can to highlight the structure of this argument. The structure should jump out at the reader, making it possible to read straight through your text, or skim it. Else the reader will get stuck puzzling out what you meant and lose momentum.

Make sure your readers are never perplexed about the point of the paragraph they're reading. Make them want to keep turning the page because you've set up questions to which they want to know the answers. Don't make them rub their eyes in frustration or boredom and wander off to the fridge or the web browser.

So how exactly do you "highlight the structure" and "set up questions"?

Ask questions explicitly and then answer them, as I just did. This is a great device for breaking up boring prose, communicating your rhetorical goals, and making the reader think.

Explicitly refer back to previous text, as when I wrote, "So how exactly do you 'highlight the structure' and 'set up questions'?"

Use lots of transitional phrases (discourse connectives). Note that it's fine to use these across chunk boundaries; that is, feel free to start a new subsection with "For this reason, ...", picking up where the previous subsection left off.

As you come to the end of a section, remind the reader what the point was. If possible, this should lead naturally into the next section.

If a section is skippable, or chapters can be read out of order, do say so. (But don't use this as an excuse for poor organization or long distractions. Some readers tend to read straight through, and in particular, your advisor or committee may feel that they must do this.)

Lots of internal cross-references

A thesis deals with a lot of ideas at once. Readers can easily lose track. Help them out:

Each figure or table should be mentioned in the main text, so that the reader knows to go look at it. Conversely, the figure's caption may point the reader back to details in the main text (stating the section number). A caption may also refer to other figures or tables that the reader should be sure to compare.

Boldface terms that you are defining, as a textbook would. This makes the definitions easy to spot when needed. You may also want to generate an index of boldfaced terms.

Be very consistent in your terminology. Never use two terms for the same idea; never reuse one term or variable for two ideas.

Be cautious about using pronouns like "it," or other anaphors such as "this" or "this technique." With all the ideas flying around, it won't always be obvious to everyone what you're referring to. Use longer, unambiguous phrases instead, when appropriate.

Try saying "the time t " instead of just " t " or just "the time." Similarly, "the image transformation T ," "the training example x i ," etc. This style reminds the reader of which variables are connected to which concepts. You can further do this for expressions: "the total probability Σ i p i " instead of just "the total probability" or "the sum."

Feel free to lavish space where it confers extra understanding. Don't hesitate to give an example or a caveat, or repeat an earlier equation, or crisply summarize earlier work that the reader needs to understand.

Be concrete

As I read a thesis, or a long argument or construction within a thesis, I often start worrying whether I am keeping the pieces together correctly in my head. Something that has become deeply familiar and natural to you (the world expert) may be rougher going for me. If I can see some concrete demonstration of how your idea works, it helps me check and deepen my understanding.

Examples keep the reader, and you, from getting lost in a morass of abstractions. Example cases figured in your thinking; they can help the reader, too. Invented examples are okay, but using "real" examples will also show off what your methods should or can do.

Running examples greet the reader like old friends. The reader will grasp a point more quickly and completely, and remember it better, when it is applied to a familiar example rather than a new one. So if possible, devise one or two especially nice examples that you can keep revisiting to make a series of points.

Pictures serve much the same role as examples: they're concrete and they share how the ideas really look inside your head. A picture is worth at least a thousand words (= 2.5 double-spaced thesis pages).

Pseudocode is a concrete way to convey an algorithm. It is often more concise, precise, and direct than a prose description, and may be closer to your own thinking. It will also make other people much more likely to understand and adopt your methods.

Theorems , too, are concise and precise. They are also self-contained chunks, because they formally state all their assumptions. A reader sloshing through a long, complicated, contextual argument can always grab onto a theorem as an island of certainty.

Experimental results are also concrete. You don't have to wait for the experimental section: it is okay to foreshadow your experiments before you present them in full. When you are developing the theory, you can say "Indeed, we will find experimentally in section 5.6 that ..." You can even showcase an example from your experiments or give some summary statistics; these might not even show up later in the experimental section.

Commitments keep the reader anchored. As noted earlier, your dissertation should discuss alternative solutions that you rejected or are leaving to future work. That's scholarship. But make it clear from the start what you actually did and didn't do. Don't have section 2.3 chatter on about everything one could do -- that reads like a proposal, not a thesis! -- while waiting till section 4.5 or even 2.5 to reveal what you actually did.

Placing these concrete elements early is best, other things equal. Either embed them early in the section or just tell the reader early on to go look at Figure X. (If you continue the section by discussing Figure X, the reader is more likely to actually go look. Figure X or its caption can refer back to the text in turn.)

For example, consider pseudocode. Some readers prefer code to prose, and it's concise. So you may want to give pseudocode early in the section, before you ramble on about why it works. An alternative is to intersperse fragments of pseudocode with your prose explanation, as in literate programming . Of course, the pseudocode itself should also include some brief comments; where necessary these can just point to the text, as in "implements equation (5)" or "see section 3.2."

Sentences. The previous section dealt with sections and paragraphs, but how about sentences? Yours should read well. The best advice in The Elements of Style : "Omit needless words. Vigorous writing is concise." To learn how to improve your sentences, read Style: Lessons in Clarity and Grace , by Joseph M. Williams, and do the exercises. Another classic is On Writing Well , by William Zinsser.

Computers are getting exponentially faster (Moore, 1965). However, Biddle (1971) showed ...

Bandura's (1977) theory ... ... (e.g., Butcher, 1954; Baker, 1955; Candlestick-Maker, 1957, and others). The work of Minor (2001, pp. 50-75; but see also Adams, 1999; Storandt, 1997) ... According to Manning and Schütze, 1999 (henceforth M&S), ...

(Another option is the apacite package, which precisely follows the style manual of the American Psychological Association. It is nearly as flexible in its citation format, but APA style has some oddities, including lowercasing the titles of proceedings volumes. One nice thing about APA style is that if you have multiple Smiths in your bibliography, it will distinguish them where necessary, using first and middle initials. Another nice thing is the use of "&" rather than "and" in author lists; however, you can easily hack plainnat.bst to mimic this behavior.)

\usepackage[colorlinks]{ hyperref } \usepackage{ url }

\usepackage[usenames,dvipsnames,svgnames,table]{xcolor} \usepackage{soul} \newcommand{\todo}[1]{\hl{[TODO: #1]}} \todo{Either prove this or back away from the claim. I think Fermat's Last Theorem might be the key ...}

\newcommand{\todo}[1]{}

... only 58 words in the dictionary have this property. % to get that count: % perl -ne 'print if blah blah' /usr/share/dict/words | wc -l

Version control. It's probably wise to use git (or CVS or RCS or Subversion or mercurial or darcs) to keep the revision history of your dissertation files. This lets you roll back to an earlier version in case of disaster. Furthermore, if you host the repository on your cs.jhu.edu account, it will be backed up by the department.

Sharing your thesis. When you're willing to open up for comments from fellow students, your advisor, or your committee, give them a secret URL from which they can always download the latest, up-to-date release of your thesis, as well as earlier versions. (This is probably friendlier than just pointing them to your git repository.)

Keep this URL up to date with your changes. Each distinct version should bear a visible date or version number, to avoid confusion. For each new version (or on request), you should probably also supply a PDF that marks up the differences from an appropriate earlier version, using the wonderful latexdiff program (available here or as an Linux package; plays nicely with git via latexdiff-git or other scripts ) or a similar technique . (Note: If you use a makefile to build your document by running latex, gnuplot, etc., then you can also make it run latexdiff and update the URL for you.)

If you use Overleaf , just give your committee a view URL for your project. They will be able to see the PDF, visit different versions, and leave comments in the source file.

Planning Your Dissertation

Every dissertation is a little different. Talk to your advisor to draft a specific, written plan for what the thesis will contain, how it will be organized, and whom it will address. Discuss the plan with each of your committee members, who may suggest changes. They might disagree with advice on this page; find out.

As the dissertation takes shape, your plan may need some revision. Your advisor and committee may be willing to provide early feedback. But no one will want to slog through more than a version or two in detail. So ask them each how many drafts of each chapter they're willing to read, and in what state and on what schedule. Some of them nmay prefer to influence your writeup while it's still in an early, outline form. Others may prefer to wait until your prose is fairly polished and easy to read.

In addition to your advisor's goals and your committee's goals, you may have some goals of your own, e.g.,

GOOD LUCK!!! Now, download that LaTeX template , and take the first step toward filling it in today ...

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Know How to Structure Your PhD Thesis

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Table of Contents

In your academic career, few projects are more important than your PhD thesis. Unfortunately, many university professors and advisors assume that their students know how to structure a PhD. Books have literally been written on the subject, but there’s no need to read a book in order to know about PhD thesis paper format and structure. With that said, however, it’s important to understand that your PhD thesis format requirement may not be the same as another student’s. The bottom line is that how to structure a PhD thesis often depends on your university and department guidelines.

But, let’s take a look at a general PhD thesis format. We’ll look at the main sections, and how to connect them to each other. We’ll also examine different hints and tips for each of the sections. As you read through this toolkit, compare it to published PhD theses in your area of study to see how a real-life example looks.

Main Sections of a PhD Thesis

In almost every PhD thesis or dissertation, there are standard sections. Of course, some of these may differ, depending on your university or department requirements, as well as your topic of study, but this will give you a good idea of the basic components of a PhD thesis format.

• Abstract : The abstract is a brief summary that quickly outlines your research, touches on each of the main sections of your thesis, and clearly outlines your contribution to the field by way of your PhD thesis. Even though the abstract is very short, similar to what you’ve seen in published research articles, its impact shouldn’t be underestimated. The abstract is there to answer the most important question to the reviewer. “Why is this important?”
• Introduction : In this section, you help the reviewer understand your entire dissertation, including what your paper is about, why it’s important to the field, a brief description of your methodology, and how your research and the thesis are laid out. Think of your introduction as an expansion of your abstract.
• Literature Review : Within the literature review, you are making a case for your new research by telling the story of the work that’s already been done. You’ll cover a bit about the history of the topic at hand, and how your study fits into the present and future.
• Theory Framework : Here, you explain assumptions related to your study. Here you’re explaining to the review what theoretical concepts you might have used in your research, how it relates to existing knowledge and ideas.
• Methods : This section of a PhD thesis is typically the most detailed and descriptive, depending of course on your research design. Here you’ll discuss the specific techniques you used to get the information you were looking for, in addition to how those methods are relevant and appropriate, as well as how you specifically used each method described.
• Results : Here you present your empirical findings. This section is sometimes also called the “empiracles” chapter. This section is usually pretty straightforward and technical, and full of details. Don’t shortcut this chapter.
• Discussion : This can be a tricky chapter, because it’s where you want to show the reviewer that you know what you’re talking about. You need to speak as a PhD versus a student. The discussion chapter is similar to the empirical/results chapter, but you’re building on those results to push the new information that you learned, prior to making your conclusion.
• Conclusion : Here, you take a step back and reflect on what your original goals and intentions for the research were. You’ll outline them in context of your new findings and expertise.

Tips for your PhD Thesis Format

As you put together your PhD thesis, it’s easy to get a little overwhelmed. Here are some tips that might keep you on track.

• Don’t try to write your PhD as a first-draft. Every great masterwork has typically been edited, and edited, and…edited.
• Work with your thesis supervisor to plan the structure and format of your PhD thesis. Be prepared to rewrite each section, as you work out rough drafts. Don’t get discouraged by this process. It’s typical.
• Make your writing interesting. Academic writing has a reputation of being very dry.
• You don’t have to necessarily work on the chapters and sections outlined above in chronological order. Work on each section as things come up, and while your work on that section is relevant to what you’re doing.
• Don’t rush things. Write a first draft, and leave it for a few days, so you can come back to it with a more critical take. Look at it objectively and carefully grammatical errors, clarity, logic and flow.
• Know what style your references need to be in, and utilize tools out there to organize them in the required format.
• It’s easier to accidentally plagiarize than you think. Make sure you’re referencing appropriately, and check your document for inadvertent plagiarism throughout your writing process.

PhD Thesis Editing Plus

Want some support during your PhD writing process? Our PhD Thesis Editing Plus service includes extensive and detailed editing of your thesis to improve the flow and quality of your writing. Unlimited editing support for guaranteed results. Learn more here , and get started today!

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Why is a PhD thesis typically 150 pages? [closed]

I just don't understand why the overall findings & implications of a PhD cannot be communicated in the style of a research paper?

Succinctness is a virtue in a field characterised by time pressure.

The research output is equal to or less than that of a 3 year postdoc - which is always communicated as a research paper.

Just seems like added embellishment for the sake of embellishment.

What am I missing?

• 20 What am I missing? A lot actually. The length of a PhD dissertation varies greatly by field, university, and department. My dissertation had 5 chapter: an Intro, 3 manuscripts chapters, and a conclusion. Also, during my postdoc I produced far more than a single publication. You're making field specific assumptions and generalizing them –  Richard Erickson Commented Jul 22, 2019 at 18:14
• 4 The nature of a PhD thesis varies wildly from field to field and also country to country. Please make your question more specific. –  Thomas Steinke Commented Jul 22, 2019 at 18:23
• Systems Biology in the UK –  Asymptotic Tri Commented Jul 22, 2019 at 19:06
• 1 Out of curiosity, I looked for the largest digital dissertation file I have a copy of (something I could do easily and quickly), and David E. Rowe's dissertation Felix Klein, David Hilbert, and the Göttingen Mathematical Tradition is xxviii + 637 [= 665] pages (26.56 MB). Here's one I missed a few moments ago that is v + 632 pages (29.31 MB). –  Dave L Renfro Commented Jul 22, 2019 at 21:20
• 4 Quick answer: Because they are single column, double spaced with big font and big margins –  Astor Florida Commented Jul 23, 2019 at 2:27

3 Answers 3

I don't know where your 150 page idea comes from since I have never heard this as a guideline. However, in my field, "staple theses" are common, composed of roughly 3 papers stapled together (either already published or publishable drafts), with an added introduction and conclusion that tie the works together and may get a bit deeper into background than is acceptable in a published manuscript.

Therefore, they must be at least the length of three research papers, and aren't typically all that much longer than that. However, theses are also typically formatted in a longer form, more similar to the original word-processed manuscript, whereas journal articles are composed in a dense, newspaper-like format. Figures may have their own pages. In sum, a manuscript that is 10-15 published pages can easily be 30-50 pages in this format.

No embellishment necessary to get to 150 pages.

I'd also add that a post doc in my field who only produced 1 paper in 3 years would probably have their next job in industry; a graduate student with only one paper will have been quite disappointing (it may happen that only one paper is publishable due to being scooped or unexpected failures, but even those outcomes can be part of a thesis). Not necessarily, it's possible that paper could be highly impactful, and might be reasonable in some subfields, but generally that would not be a suitable output for an academic career.

Edit: decided to pull up my own thesis from the archives. 230 pages. Of those, 53 pages are "thesis-only" pages; the other 177 pages are verbatim copies from 2 published papers and a third draft manuscript which was later revised and published, all reformatted to fit the thesis formatting requirements. Of the remaining 53 pages of "fluff," 6 pages are title/contents/acknowledgements/abstract, and about 19 are references for the introduction/conclusion chapters, so about 28 extra pages of generously spaced writing, to be treated as "embellishment" if you wish, or alternatively, to provide enough background and context for the work for someone familiar with the field but not previously familiar with my research area, such as members of my thesis committee besides my advisor.

In summary, even if my thesis had nothing but 3 published/publishable manuscripts, it would already be >150 pages.

• I recognise that PhD theses vary in length; however in general theses have a substantially higher word count than a research publication. –  Asymptotic Tri Commented Jul 22, 2019 at 19:14
• Number of papers as a marker of progress is annoying too. It is possible to publish 100 papers without changing the world in any meaningful way. –  Asymptotic Tri Commented Jul 22, 2019 at 19:16
• 3 @AsymptoticTri Yes, they do, and my answer explains why, at least in my area, they would typically have at least 3 times as many words as a research publication, plus a few extra pages of context. I am also in biology. –  Bryan Krause ♦ Commented Jul 22, 2019 at 19:16
• 12 It is possible to publish 100 papers without changing the world in any meaningful way — If changing the world in a meaningful way were a requirement for a successful PhD thesis, there would be very very very few PhDs, almost all awarded posthumously. –  JeffE Commented Jul 22, 2019 at 20:46

Succinctness may be a virtue, but page limits means that papers are often overly terse. They also commonly leave out important information, helpful steps, and additional but less eye catching results. The presentation and style of a paper is also often geared towards experts in a field, while you have more freedom to be pedagogical and explicit in a dissertation. Factor in a double-spaced one-column format and some front matter, and it's easy to get to 150 pages and beyond.

In fact, one of my papers during the PhD (physics) was five pages long when published, plus references (not counted in page limit). Six pages of supplemental material was deposited along with the paper, for a total of 11 pages. The corresponding chapter in the dissertation is 46 pages long, with some details still relegated to appendices... The main difference in presentation, however, isn't the length or layout - it's that I attempted to make the description more self-contained. A new graduate student may actually get a reasonable idea of the background and calculations from reading this chapter and the introduction. In contrast, there's no way the same grad student could get all details from the paper and be able to reproduce the calculations without following a bunch of references, well unless they already were an expert . And if you do read those papers, the amount of material to go through would quickly exceed 150 pages anyway.

Yes, many dissertations could be made more compact, but why? The dissertation is a rare opportunity where you don't have to compromise style or contents. It's an opportunity to provide an alternate description than already exists in preprints or published papers that can be useful to another audience. It's also a place where you can make deposit certain results, derivations, proofs or procedures that don't fit elsewhere in explicit form for later use by yourself as well as others. So if you want to write a shorter dissertation yourself, that's alright, but avoid judging others for trying to be more pedagogical than the journal paper form allows.

• [quote]there's no way the same grad student could get all details from the paper and be able to reproduce the calculations without following a bunch of references, well unless they already were an expert[/quote] Thanks Anyon, I found that explanation helpful. –  Asymptotic Tri Commented Jul 24, 2019 at 11:19
• @AsymptoticTri I'm happy it helped. –  Anyon Commented Jul 24, 2019 at 12:36

Your question includes a number of assumptions, which are not universal and may be simply wrong for some areas.

• You probably know that John Nash had one of the shortest PhD theses with only 26 pages and 2 references. PhD theses of 300+ pages are also not unusual, particularly in humanities.
• I would expect a postdoctoral researcher in Mathematics to participate / contribute to at least 1 paper per year. I know of colleagues in Engineering / Computer Science for whom this expectation seems very low - a postdoctoral researcher in their group would put their name on 3-5 outputs per year.

Number of pages, as well as the number of outputs, is an very poor metric of research effort and performance. Some universities may put an upper boundary on the number of pages to make sure that their supervisors are not overwhelmed with the amount of material they have to read and comment on during the supervision (after all, Universities want their staff to do a lot of work apart of supervising the particular student). I don't think that the lower boundary is very usual.

Having said this, there is definitely an expectation that a PhD theses should contain a detailed introduction and thorough literature review. After all, a PhD student should study the area and then train themselves to become a professional researcher in this area. In contrast, a postdoctoral researcher is already expected to be trained and their work is only to do novel research. For a PhD student, a lot of emphasis is on studying the methodology, and writing about it takes time and a significant number of pages.

Finally, compare the number of references: a typical journal paper could have 30, while a PhD theses can easily have 300. This clearly shows that the scope of a PhD theses is much wider than the scope of an academic research paper, while a paper may be more focused and deep.

• 7 @AsymptoticTri The content in the intro and lit review of a paper is nowhere near as detailed as those in a thesis should be. That's the whole point: the candidate needs to be able to show that they understand the breadth of the field and how their research topic fits into that, as well as give an introduction to the broad picture so that a non-expert could understand the thesis. Instead, papers show the depth of knowledge in a very narrow area. –  astronat supports the strike Commented Jul 22, 2019 at 19:51
• 5 Successful PhD student aren't merely "trained to become" professional researchers. They are professional researchers. –  JeffE Commented Jul 22, 2019 at 20:45
• 1 @JeffE From the moment when they start their program? --- no, not necessarily. When they successfully complete it? --- yes, sure. –  Dmitry Savostyanov Commented Jul 23, 2019 at 17:09
• 1 @DmitrySavostyanov By the time they become successful . That's what success means. –  JeffE Commented Jul 24, 2019 at 0:03
• 2 @AsymptoticTri Because, as many answers have already stated, their PhD work is usually more than can be effectively communicated in a single paper. Or perhaps more to the point, because a single paper is usually considered insufficient evidence of being a successful researcher. –  JeffE Commented Jul 24, 2019 at 0:05

Not the answer you're looking for? Browse other questions tagged thesis .

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How Many Pages is a Thesis or Dissertation: Masters to PhD

• by Judy Jeni
• January 30, 2024

A thesis is a written document by a student in support of candidature for professional qualifications or academic degrees.

It presents the student’s research and findings. A thesis has its structure and presentation styles. But one may ask, how many pages is a thesis?

Furthermore, do the college, master’s, and Ph.D. projects have the same page numbers? A typical thesis paper has a title page, abstract, and table of contents. We have chapters like introduction, literature review, methodology, results, discussions, and a reference section.

How Many Pages is a General Thesis

From experience, a thesis, in general, is between 40-80 pages long, excluding the bibliography pages. This length however depends on the level of study, the type of research to be conducted, and the expectations of the institution you are presenting it to.

Also, the structure difference is attributed to the areas of study—for instance, arts, technology, social sciences, humanities, sciences, etc.

In addition, the method of analysis contributes to the increase or decrease of the page numbers. The format of your thesis is presented in three outlines:

• The first outline consists of the abstract, table of content, and introduction.
• The second outline has the methods of research you used, your findings, and your discussion of the same.
• The last outline has your research conclusions, accompanying recommendations, and your list of references.

Even though there are no set standards on the number of pages, the quality of your work precedes your quantity.

How Many Pages is a Thesis for College

A college thesis is from 40 pages and above so that it can cover the contents of the topic and research being undertaken. However, this length depends on your area of study and the teacher’s guidelines dictate the structure of your writing. Although each thesis is different, they all have common elements.

The typical outline has an abstract, an introduction, research methods, and findings, and lastly, a conclusion and a bibliography section.

To be able to have your paper have all the necessary points and required length;

• Start by arranging your paper as a logical argument before you start to write.
• Have figures that illustrate your argument
• The background of your argument is your introduction, describe the information used in your argument as the points in your observation, analyze your issues and come up with your conclusion.
• Outline the main elements in sections and subsections
• Start to write your college thesis.

How Many Pages is a Thesis for Masters or PhD

On average, a master’s thesis or a PhD dissertation is between 120 pages and 200 pages long without counting the bibliography and the appendices. However, the length of a thesis is determined by the depth of your research and the technical nature of the research being conducted.

Also, the literature review and discussion sections determine the length of the project. Always remember to write for brevity rather than length.

No matter the length of your dissertation, always remember that you need to follow the instructions and be brief. Your thesis aims to have all the necessary information discussing your work and supporting your interpretation.

A master’s thesis is close to a doctoral dissertation, but it is shorter and has a narrow focus on the topic of discussion. To understand the length of a thesis for both master’s and Ph.D., first, let’s look at the parts that carry the length.

Purpose and Significance of your Study

In chapter one, you start by outlining the purpose of your study and its significance. The significance is shown by explaining how the study adds to the theoretical knowledge and its practical significance.

For a Ph.D. thesis, students discuss how their research makes a unique contribution to the knowledge in their disciplines.

Additionally, they discuss the significance of their study to the general people.

Chapter one of your thesis should be well developed to give you a clear focus and direction for your entire thesis.

Literature Review

Chapter two discusses the literature review. Here you discuss the theoretical framework of your literature. Besides discussing what other researchers have found, you should analyze and discuss your body of knowledge.

The aim here should be to expound on what is known and what is not known on your topic of discussion. The above will assist you in writing your research question or the hypothesis.

Methodology

Chapter three expounds on your methodology. Discuss the methods you used to gather data for your thesis. In addition, you will write about how you analyzed your data.

Start by discussing the method you used to gather your raw data and why your preference was appropriate. Remember to cite the reference literature on the technique.

Although this chapter varies based on the method and analysis technique used, give a detailed procedure you used to gather and analyze your data.

The following are the subtopics of this section;

• Description of research design
• Description of population and justification for sampling method used
• Describe the method or instrument of making observations and its administration
• Description of data analysis, tests performed, and statistical analysis. Also, discuss the qualitative or historical research.

In chapter four discuss the results from your data analysis only. Do not include other research findings or the implications of your findings.

Start by explaining any descriptive analysis. For example, factory analysis or reliability tests that were conducted.

Continue to talk about the findings of your hypothesis test. Extensively, use tables and figures to represent numerical data from your findings.

The qualitative and historical research is organized by the themes found in your research.

Lastly, chapter five shows what your findings mean concerning the theoretical knowledge of your topic. Although this chapter is somehow skimmed, it should be seen as important as it answers the question “so what…”

Start by explaining your findings concerning the theoretical passage presented in the literature review. With qualitative research, you may as well introduce new literature. Alongside,doctoral students should demonstrate the pedagogical implications of the findings to mass education.

The chapter also continues to discuss the limitations encountered in your research. Alongside, propose areas of future research. Have a solid final closure with a brief conclusion.

Factors Determining the Length of a Thesis

The following factors determine the length of your thesis

Your Area of Study

Your area of learning or the discipline dictates how long your thesis will be. The subject determines whether you will write longer literature reviews or collection of more data.

It should be noted that this will also affect the time it takes to complete your thesis because the demands of your subject will eat on your valuable time. Both lead to a longer or a shorter thesis or dissertation.

Nature of Your Project

The scope of your thesis will reflect on the length of your thesis. For example, the introduction length is dictated by the total word count of your thesis.

It should not exceed ten percent of your total word count. As an illustration, if your total words are eight thousand, your introduction should be up to 800 words.

Tips on How to Lengthen your Thesis

There are numerous ways you can use to reach the required word count or required pages.  You may increase the margin of your paper, but you might anger your professor. The following are better ways of lengthening your thesis.

1. Ensure you have included Everything

Check whether you have answered all the questions required by your research. In addition, include as much background material as possible. This will give you data that you will use to increase your word count.

Finding something that you have forgotten could be the reason why your thesis is shorter.

2. Intertwine Transitional Phrases in your Writing

Using transitional phrases is a natural way of lengthening your thesis. In addition, they help your reader follow through as they can connect your thoughts. Transition phrases assist you in moving from one idea to the next clearly and concisely.

3. Use Quotations

When referring to other people’s work, you use quotation marks.

Besides spicing your thesis, you can increase the size of your thesis.

Incorporating other writers’ work strengthens your arguments.

4. Review Your Introduction and Conclusion

Ideas come to you as you reread your work. Go through your introduction again to check whether there is a point you have left behind.

Ensure you have expounded on your points, and you are sure your reader will thoroughly understand your points. Also, do the same to your conclusion.

5. Spell Out Numbers or Contractions

Instead of writing numbers in figures, write them in words. Substitute “8” by writing eight. Instead of “we’re,” write the whole word- we are. However, this is limited by the style you are required to submit your thesis on.

6. Use Break-Up Paragraphs

Your work could be comprised of long paragraphs; break them to ensure a paragraph has fewer sentences. Besides increasing your thesis pages, you will make your work more readable. People prefer reading broken-down content.

In this section

• Graduate Program-Specific Contacts
• Doctoral Dissertation Policies and Procedures
• Master’s Thesis Policies and Procedures
• Thesis and Dissertation Release and Embargo Options

Thesis and Dissertation Formatting Guidelines & Deep Blue Archiving

• Graduate Studies Forms
• Three Minute Thesis Competition
• Graduate Student Appreciation Week

The purpose of these Formatting Guidelines is to make all dissertations and theses legible, accessible, preservable, and uniform in presentation. The steps you take now to format your dissertation and thesis will improve the file for future readers.

See The Mardigian Library’s  Formatting Your Thesis or Dissertation with Microsoft Word  for video tutorials designed to help you get most of the formatting of your thesis correct the first time. It is recommended that you use the dissertation/thesis template available in this guide which has most of the guidelines already incorporated.

For questions about formatting beyond what is covered in these resources, please check with your dissertation or thesis advisor.

File Format

• Submit the dissertation or thesis as a PDF file

Structure/Accessibility

Techniques for creating accessible documents, including adding alternative text for images, can be found on this  website.

Set Document Title:  Set the document title (note: this is a document property, not the filename) as your dissertation or thesis title.

Set Document Language

Set the Language of Parts (Quotations, Sections) That Are Different from the Main Language (required if applicable)

Use Correct Headings:  Use appropriate heading levels for section and subsection titles. Use “Heading 1” for main section titles (e.g. a Chapter), “Heading 2” for subsection titles (e.g. a Chapter section), and so on.

Create Lists, Columns, and Other Structures by Using the Appropriate Structural Element.  Do not use space bar, tab, or enter to arrange text in apparent tables, lists, or columns.

Images, Figures, Tables, Media

• Include descriptive alt text for all images and figures to convey the meaning and context of a visual item in a digital setting (do not use images of tables.)
• Use at least 2-inch top margin on the Title Page.
• Use 2-inch top margin on the first page of every chapter and major section (Acknowledgements, List of Figures, Bibliography, etc.…)
• Use at least 1-inch margins (top, bottom, left, right) on all pages. 

Text, Fonts, Color, Spacing

• Use a legible font, size 12 point, black color for all body text. Recommended fonts include Times or Times New Roman (serif fonts) or Arial (sans-serif font). Images and text within images may be in color.
• Headings may be visually different than body text (bigger, bold) and no bigger than size 16 point.
• Font size for footnotes, endnotes, captions, tables, figures, and equations may be smaller than the body text and no less than 9 point.
• Text in the Front Matter that links to a location within the dissertation or thesis (from the Table of Contents, for example) should not be underlined or outlined as hyperlinks.
• Use embedded fonts to ensure all font information in your document is secured in your PDF.
• Use either 1.5-line or double-line spacing throughout for all body text. 
• Use single-line spacing for text in tables, lists, footnotes/endnotes, figure/table legends/captions, and bibliographic entries (with a blank line between each citation or entry). 

Numbering and Page Numbering

• Number chapters consecutively and name them as follows: Chapter [#] [Title of Chapter]. For example, Chapter 1 Introduction. 
• Include the chapter number and name as a heading on the first page of chapter and in the Table of Contents.
• Number all tables, figures, appendices, etc. consecutively and name them as follows: Table [#] [Caption/Title/Legend]. 
• Tables, Figures, etc. may be numbered simply using whole numbers throughout the document (Figure 1, Figure 2, Figure 3) or by combining the chapter number and table, figure, etc. number per chapter (Figure 2.1, Figure 2.2, Figure 3.1). Choose one system from an appropriate style guide and use it consistently.
• Include a List of Figures, List of Tables, etc. in the front matter if the dissertation or thesis includes more than one figure, table, illustration, appendix, etc. (required if applicable)
• List of Figures (or List of Tables, List of Illustrations, List of Appendices, etc.) includes the title of each, its caption/title/legend, and page number on which it begins.
• Include page numbers in the front matter, centered in the footer, using lowercase Roman numerals, beginning on page ii (the first page after the Identifier/Copyright page).
• Include page numbers in the dissertation text and following sections, centered in the footer, using Arabic numerals, beginning on page 1.

Components of the Dissertation and Thesis

Include the following components, in the following order. All required components must be included.

Use the page numbering conventions given below. Every section below starts on a new page with 2-inch top margin.

Title Page (required)

No page number. No page count.

• See the section below for details of component requirements.

Frontispiece (Illustration or Epigraph) (optional)

Identifier/Copyright Page (required)

• No page number. Start page count here.
• See section below for details of component requirements.

Dedication (optional)

• Page numbers required. Start lowercase Roman numerals (starting with ii) here.
• Acknowledgments (optional)

Page numbers required. Lowercase Roman numerals.

Preface (optional)

Table of Contents (required)

List of Tables, List of Figures, etc. (required if applicable)

• List of Tables required if there is more than one table, etc.

List of Illustrations/Photos (required if applicable)

List of Appendices (required if applicable)

List of Abbreviations, List of Acronyms, List of Symbols (optional)

Abstract (required)

Dissertation or Thesis Text (required)

• Page numbers required. Start Arabic numerals here.
• Appendices (optional)

Bibliography or Reference section(s). (required)

Page numbers required. Arabic numerals. Insert at the end of each chapter, or the end of the dissertation/thesis, in the format preferred by the discipline.

Title Page Components

Include the following components on the title page, in the following order. Begin each item on a new line.

• At least 2 inch top margin on Title Page. 
• Complete dissertation  or master’s thesis title, centered, and capitalized in title case. 
• Your author name should match your legal name or preferred name in Wolverine Access
• You may use initial(s) for middle name(s).
• The following text, including line breaks, centered and single line-spaced. 

A dissertation (thesis) submitted in partial fulfillment of the requirements for the degree of Name of Degree (Name of Program) in The University of Michigan-Dearborn YEAR

• The text, “Doctoral Committee  or Master’s Thesis Committee:” left justified. 
• List chair or co-chairs first (in alphabetical order by surname if more than one) with “Chair” or “Co-Chair” after their titles and names.
• List other committee members in alphabetical order, by last name.
• Professor rank (e.g., Professor, Associate Professor, Assistant Professor, Emeritus Professor) or title (e.g., Dr.)
• Complete full name
• Affiliation, if not affiliated with University of Michigan (e.g., name of university, college, corporation, or organization)

Identifier/Copyright Page Components

Include the following components on the identifier/copyright page, in the following order. Begin each item on a new line, centered.

• Your full legal name (Required)
• Your @umich.edu email address (Required)
• Your ORCID iD (required only for PhD candidates)

ORCID iD is a unique digital identifier that you control and that distinguishes you from other researchers.

• ORCID iD profile URL (Recommended)
• Copyright notice. (Recommended)

Copyright notice notifies readers that you hold the copyright to this work and when it was established.

Use the following format: © Full Name YEAR

Final Formatting Checks

Before submission, double-check the following:

• All numbered series (pages, chapters, tables, figures, etc.) are consistently formatted and consecutive throughout the document.
• All entries in the table of contents and lists match contents as titled/ordered in the dissertation text.
• References/Bibliography entries are complete and match the formatting preference of your discipline.

Thesis or Dissertation Embargo

The thesis or dissertation is submitted as public evidence of your scholarly research and accomplishment. A thesis or dissertation and abstract is normally made publicly available upon degree conferral when it is deposited electronically in Deep Blue. If a student wishes to postpone public release of the final product, also called an embargo, the student should discuss this option with his or her faculty advisor. It has always been the university's expectation that every dissertation and abstract will be released upon conferral of the degree. Only in specific circumstances may release of a thesis or dissertation be deferred, and then only for a limited period of time. The student is responsible for requesting an embargo.

Embargo forms can be found at:  "Thesis and Dissertation Release and Embargo Options”

Deep Blue Archiving 

Required for doctoral dissertations and highly recommended for Master’s Thesis. The final pdf document of your dissertation or thesis must be submitted electronically to the Mardigian Library. This digital PDF will be the copy of record and will be archived in  Deep Blue . Deep Blue is a digital repository that is part of the University of Michigan Library. 

To submit your document, you need to provide:

• Your ORCID iD  
• Keywords that describe the subject, concepts, theories, and methods used in your document, to help others find and retrieve your document
• A copy of your thesis or dissertation in PDF format
• Optional – up to two supplementary files (no larger than 50 MB each), such as an audio file, spreadsheet, or a software program

To maintain the usability and appearance of your document, please review the  Best Practices for Producing High Quality PDF Files , available on Deep Blue.

If you have supplemental materials (such as data) that should also be made publicly available and associated with your dissertation or thesis, consider reaching out to  [email protected]  for help determining whether these should be deposited into one of the Deep Blue repositories.

Once your document is submitted to Deep Blue by the library, you will receive an email containing the DOI and a URL to access the document. It will also be added to the Mardigian Library catalog and made available on Google Scholar. If no embargo is requested, it may take three to four weeks for your document to become available.

Submit Final Thesis/Dissertation to Deep Blue

More support.

• Library Guide to  Formatting Your Thesis or Dissertation with Microsoft Word  and Video Tutorials.
• UM IT accessibility guide for  creating accessible documents .
• Guide for  embedding all fonts in PDFs generated with LaTeX or PDFLaTeX .

Contact your  subject librarian  for assistance on a wide range of topics including literature searching, citation management, and much more.

Download the Formatting Checklist

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11 September 2024 MDPI’s 2023 Best PhD Thesis Awards—Winners Announced

MDPI’s Best PhD Thesis Awards are granted to promising young scholars whose PhD theses are deemed exceptional within their respective research fields. These awards aim to encourage young scholars to continue their outstanding accomplishments and further contribute to their field.

We extend our heartfelt congratulations to the 54 winners of the 2023 Best PhD Thesis Awards and wish them success with their future research endeavors.

MDPI will continue to provide support and recognition to the academic community. To learn more about all the awardees and their research projects in your field of study, please visit the following pages:

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To reward the academic community, especially young researchers, and enhance communication among scientists, MDPI journals regularly offer various awards to researchers in specific fields. These awards, serving as a source of inspiration and recognition, help raise the influence of talented individuals who have been credited with outstanding achievements and are making a significant contribution to the advancement of their fields.

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