What is a dissertation?
A dissertation is likely the most significant academic project you will undertake during your studies. Put simply, it is an extensive, original piece of research on a specialized subject, required to fulfill the final criteria of your postgraduate degree.
Terminology can vary by region; in many academic circles, the term is often used interchangeably with a thesis. In North American institutions, a dissertation is typically associated with doctoral-level research, while in the UK, it is a standard requirement for both undergraduate and Master’s programs. European universities often apply these terms based on their specific local academic conventions.
In this guide, we demystify the postgraduate dissertation process and provide actionable insights to help you navigate your writing journey from start to finish.
Before diving into the writing process, it is essential to understand the purpose behind this academic milestone.
A dissertation serves as a demonstration of your subject-matter expertise and your capacity for independent research. It encapsulates your learning while serving as a bridge to your future career or continued academic research. At the doctoral level, it acts as a critical contribution to your field, as you must identify and address a research gap, ultimately leaving a lasting impact on your discipline.
With that framework in mind, here is our essential guide to writing a high-impact dissertation.
Typical length and structure
The required length of your dissertation will vary significantly based on your institution, academic level, and specific field of study.
Typically, a Master’s dissertation ranges from 12,000 to 50,000 words. At the doctoral level, the dissertation is far more substantial, often spanning 70,000 to 120,000 words or 150 to 300 pages. Note that these word counts generally exclude the abstract, appendices, and bibliography.
Your dissertation should be organized into clearly defined chapters, each featuring its own introduction and conclusion to guide your reader through a cohesive and logical argument.
While structure can fluctuate based on your discipline, most postgraduate dissertations follow this standard format:
Title Page | The formal cover, which includes your project title, your name, your supervisor’s details, and your institution. |
Acknowledgements | While optional, most students include a brief section to thank the supervisors, colleagues, and family members who provided support throughout the research process. |
Table of Contents | A comprehensive roadmap of your document, allowing readers to navigate your structure easily. |
Abstract | The “elevator pitch” of your work. The abstract summarizes your research objectives, methodology, key findings, and final conclusions. |
Glossary | If your research relies on technical terminology or specialized jargon, a glossary ensures your work remains accessible to a broader audience. |
Introduction | This sets the stage for your research, introducing the topic, your primary argument, the methodology used, and a brief overview of each subsequent chapter. |
Literature Review | This critical analysis surveys existing scholarly work, identifies key debates, and highlights the specific 'research gap' that your study aims to resolve. |
Methodology | A transparent account of how you collected your data, the analytical framework applied, and the justification for your chosen research methods. |
Results | A clear, objective presentation of your primary data and findings, stripped of interpretation at this specific stage. |
Discussion | Here, you interpret your findings, relating them back to your original research question and evaluating their significance within the broader academic field. |
Conclusion | The final synthesis of your dissertation, summarizing your core arguments and providing a definitive answer to the research problem addressed. |
Appendices | Supplementary materials such as raw data, transcripts, or complex diagrams should be properly referenced and included here. |
Bibliography/References | A comprehensive list of every source cited in your work, formatted strictly according to your department's specific citation style. |
Generally, dissertations are categorized by their research design: quantitative, qualitative, or a mixed-methods approach.
- Quantitative: mathematical and statistical data based. Involves experiments, closed-question surveys (‘on a scale of 1-10’) and number based observation. Typically associated with STEM dissertations. Would see your dissertation using a lot of graphs and figures to demonstrate your research
- Qualitative: theory and concept based, exploring ideas and words. Involves observation, interviews and focus groups. Typically associated with humanities dissertations. Draws upon pre-existing sources for in-depth, exploratory analysis
Selecting the appropriate research methodology is a pivotal step in your planning phase, as it will fundamentally dictate the structure and execution of your project.
How to plan a dissertation
You will be assigned a supervisor who specializes in your research area. They serve as an invaluable resource, offering guidance on your project’s scope, structural integrity, and adherence to your research timeline.
Time management is the cornerstone of a successful dissertation. Avoid the temptation to procrastinate, as the writing and editing process requires significant iteration. Include 'buffer zones' in your schedule to account for potential delays or unexpected research hurdles.
Research is a fundamental component of your work. Map out your time requirements early—especially if you require laboratory access or specific fieldwork. Tracking your progress meticulously is essential, as this will inform your methodology section and help you account for any deviations in your final results.
Create a detailed outline that reconciles existing scholarship with the original research you intend to conduct. Proactively manage your references using software tools from the start to prevent a frantic, last-minute bibliography rush.
Writing a dissertation
Writing a dissertation requires immense discipline, patience, and intrinsic motivation. Especially at the doctoral level, where the project spans years, your structured plan and regular consultations with your supervisor will be your greatest assets.
Your initial phase should involve conducting your planned research and gathering data, which can occur concurrently with your ongoing literature review analysis.
There is a common academic belief that the introduction should be the final piece written. However, many students find that crafting a draft introduction early provides a vital roadmap to keep their writing focused and aligned with their core objectives.
Alternatively, start with sections you are most confident in, such as your methodology or literature review. Starting with pre-existing information creates momentum before you tackle the more complex interpretive chapters.
Aim to complete at least two full drafts before submission. This allows you to iterate based on critical feedback from your supervisor and peers.
Document every step of your progress, as even unexpected results or failed hypotheses provide rich material for your discussion. A thoughtful analysis of *why* something didn't go as planned is often as valuable as a successful result.
Always return to your core research question. Use the end of every chapter to bridge your findings back to your main argument. Your conclusion should be a synthesis of previously presented evidence, not a place for new data or arguments.
Finally, dedicate ample time to rigorous proofreading and editing. Since your dissertation represents the culmination of your degree, ensure it is polished, consistent, and free of grammatical errors.
“I find the best thing is to read parts of my dissertation out loud so I can hear the flow and pick up on any awkward sentence structures.” - Emma, History MA, University of Aberystwyth
“My dissertation was the most challenging project I’ve tackled, but also my proudest achievement! My best advice: if you hit a wall, step away for a few days and return with a fresh perspective.” - Rob, Chemical Engineering PhD, University of Strathclyde
“Ask friends or family to read your draft. It’s an excellent way to see if your writing is accessible to someone outside your specific field and helps identify overly complex jargon.” - Mike, Geology MA, Queen’s University