What is a Dissertation? [2024 Guide]

Updated on October 1, 2024
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It’s common for people who are considering a graduate degree to ask, “What is a dissertation?” This term comes up often in discussions of doctoral requirements, but it may not be immediately obvious what’s involved.

Getting the facts about dissertations can help you decide whether this is a project to which you’re ready to commit.

Since a doctoral dissertation can be an integral component of a PhD program, you may want to learn all about it before applying to schools.

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What Is a Dissertation?

A dissertation is a major project completed by PhD candidates. Through it, you will establish yourself as an expert with the knowledge, critical thinking, and research skills to move your field of study forward.

The dissertation process usually gets into full swing after you complete your doctoral coursework. Before that, though, you may take several classes that will help you get started and teach you what steps to take.

The process of dissertation writing involves several phases. You’ll select a topic, do research, and type up a book-length paper about your findings and conclusions. Afterward, you will present a dissertation defense to a committee of experts who will evaluate your methodology and analyses.

As you work on your doctoral dissertation, you’ll receive the guidance of a faculty advisor. Additional support people may help you refine your strategies and ideas as well. This academic writing project can take many years, but a PhD will be the reward.

Types of Dissertations

It’s common to think of a dissertation as an original research project, but that’s not the only form that this major paper can take.

Before you commit to one path or the other, it’s beneficial to weigh the options carefully with your faculty supervisor. Some universities now offer online doctorate programs without dissertation but have a capstone project for completion. Common programs include on campus DBA degrees or online doctoral programs in education with no dissertation requirement.

How to Write a Dissertation (From Choosing a Topic to Defending It)

Writing a dissertation is a massive undertaking, so it can help to break the process down into steps.

If the panel approves of your work, you’ll have successfully completed your dissertation!

Typical Chapters in a Dissertation

Writing a dissertation is different than pulling together a short research paper. Most dissertations are quite long and are broken up into chapters. The format can vary, but the following list provides an overview of common chapter breakdowns:

Many dissertations contain other parts as well. Examples include title pages, dedication pages, glossaries, and appendices.

How Long Is a Dissertation for PhD?

Dissertations can vary in length, but they are usually at least 100 pages. Some are 300 pages or longer. Papers between 100 and 200 pages are the most common.

The standard length of a dissertation changes from one field to another. For example, history students often write dissertations that are several hundred pages. Mathematics PhD candidates may have dissertations that are fewer than 100 pages. The school where you earn your doctoral degree may set guidelines for the length of your PhD.

How Many Pages Is a Dissertation?

Many dissertations are a few hundred pages long. You’ll divide those pages up among the different sections of your paper.

The introduction may be 10 or 15 pages long. Your literature review will likely be longer—perhaps around 20 pages. Students may need up to 15 pages to explain your methodology, but the results section should be under 10 pages. Finally, students can use 15 pages or more to share their conclusions.

Dissertation lengths vary among academic disciplines. Your academic supervisor can provide specific guidance for your situation.

What’s a Dissertation Defense?

A dissertation defense is an opportunity to speak with experts from your field about your work. This step comes after you have finished the dissertation research and writing.

The committee will determine whether you have sufficiently answered your original question and contributed valuable research to your field. But you won’t present your defense until your advisor deems you ready, so the experience might not be as nerve-wracking as it sounds.

During the defense, you may give a presentation to the committee. In addition, they can ask you questions, talk to you about your work, and discuss your work among themselves.

What’s the Difference Between a Dissertation vs. Thesis?

In grad school, you’ll hear about dissertations and theses. Both are major projects, but they play different roles.

Dissertation Thesis
  • Written in doctoral programs
  • Involves contributing new research or ideas
  • Often 100 pages or more
  • Usually involves a dissertation defense
  • Written in master’s programs
  • Involves thinking critically about existing research
  • Often 80 pages or fewer
  • Doesn’t usually involve an oral defense

The above distinctions between a thesis vs. dissertation apply to US schools only. Other countries use different naming conventions.

Writing Your Dissertation

Choosing to enroll in a PhD program and write a dissertation is a big decision. With careful planning and steadfast dedication, you can get this job done.

In the process, you can contribute research and insights to your field and help answer important questions. Plus, you can earn a PhD, a prestigious degree that can take you far in life. PhD programs with dissertations are available from both on-campus and online graduate schools. You can select the format that best suits your schedule and preferences.

If you’re ready to get started, then now is the time to explore accredited universities.

Your future is waiting—click “Find My Program” to see your options.

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