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CASRAI

Thesis & dissertation · 13 pages

Thesis & dissertation

Clear, standards-grounded explainers for the postgraduate thesis and dissertation journey — from what these documents are to how they are structured, written and defended. Each page leads with a concise answer and links across to the wider CASRAI standards and research-methods guidance.

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All 13 thesis & dissertation pages

Comparison

Thesis vs dissertation

The difference is mainly one of terminology and country. In the UK, a dissertation usually means the undergraduate or master’s project and a thesis the doctoral work. In the US the usage is typically reversed: a dissertation is the doctoral work and a thesis the master’s. Both are substantial, original, supervised research.

Definition

Dissertation

A dissertation is a long, structured piece of independent research submitted as a major requirement for a degree. It sets out a research question, reviews the literature, explains the method, presents findings and draws conclusions. In UK usage a dissertation is usually the undergraduate or master’s project; in US usage it typically denotes the doctoral work.

Definition

Thesis

A thesis is a long, structured piece of original research submitted for a degree, and also the central argument a piece of academic writing advances. In the document sense, UK usage reserves "thesis" for doctoral work while US usage applies it to the master’s. In the argument sense, it is the core claim everything supports.

Guide

Dissertation structure

A standard dissertation runs: front matter (title page, abstract, contents), then introduction, literature review, methodology, results, discussion and conclusion, followed by back matter (references and appendices). The exact pattern varies by discipline — qualitative and humanities work may merge results and discussion — but this six-chapter "IMRaD-plus" shape is the common backbone.

How-to

How to write a dissertation

To write a dissertation, choose a focused, researchable topic, then write a proposal setting out your question and plan. Review the literature, design and justify your method, gather and analyse data, and write up the chapters around your findings. Finally, edit, format to your style guide and submit, working iteratively with your supervisor throughout.

How-to

Dissertation proposal

To write a dissertation proposal, state the research problem and why it matters, set clear research questions or hypotheses, review the key literature to show the gap, outline and justify your proposed methods, give a realistic timeline, and address ethics. The proposal secures approval and becomes the working blueprint for the whole study.

How-to

Dissertation methodology

To write the methodology chapter, state your overall research approach and justify it against your questions, then describe the design, your participants or data and sampling, your data-collection instruments and procedure, and your analysis method. Explain why each choice fits, address ethics and limitations, and give enough detail to replicate the study.

How-to

Dissertation literature review

To write the literature review chapter, search the literature systematically, read and evaluate sources critically, and organise them by theme rather than one by one. Synthesise what is known, expose the gap your study addresses, and structure the chapter to build an argument toward your research questions. Analyse and connect sources; do not merely summarise them.

Guide

Dissertation defence (viva)

A dissertation defence, called a viva voce in the UK, is an oral examination in which a candidate defends their thesis before expert examiners. They probe its aims, methods, findings and original contribution, and the candidate justifies their choices. Formats vary by country. Outcomes range from a pass to revisions, or, rarely, a fail.

How-to

Problem statement

To write a problem statement, describe the ideal situation, contrast it with the current reality, and pinpoint the gap between them. Then explain the consequences of leaving it unaddressed — why it matters — and state the aim of your research in closing it. A good statement is specific, evidenced and focused on a researchable gap.

Guide

Research aims and objectives

A research aim is the broad, overarching goal of a study — what it ultimately seeks to achieve. Objectives are the specific, measurable steps that, taken together, accomplish the aim. A dissertation usually has one aim and a handful of objectives. Aims are stated broadly; objectives are written as concrete, often SMART, actions.

How-to

Dissertation abstract

To write a dissertation abstract, summarise the whole work within the set word limit: state the research problem and aim, the methods used, the key results, and the main conclusion. Write it last, once everything is settled, keep it self-contained with no citations or jargon, and add keywords if required.

How-to

Dissertation title

To word a strong dissertation title, make it specific and accurate, naming the topic, key variables or focus and, where relevant, the population or context. Keep it concise and free of filler such as "a study of", and use a subtitle after a colon to add scope. Finalise it once the findings are clear.

Referenced across the research world

University of Cambridge logoColumbia University logoUniversity of Edinburgh logoHarvard University logoUniversity of Oxford logoPrinceton University logoStanford School of Medicine logoUniversity College London logoORCID logoCrossref logoUniversity of Cambridge logoColumbia University logoUniversity of Edinburgh logoHarvard University logoUniversity of Oxford logoPrinceton University logoStanford School of Medicine logoUniversity College London logoORCID logoCrossref logo
  • University of Cambridge logo
  • Columbia University logo
  • University of Edinburgh logo
  • Harvard University logo
  • University of Oxford logo
  • Princeton University logo
  • Stanford School of Medicine logo
  • University College London logo
  • ORCID logo
  • Crossref logo

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