Quick answer: A dissertation introduction does five jobs in a strict order: it establishes the topic and why it matters, narrows it to the specific gap or problem your project addresses, states your research question, aims and objectives, explains briefly how you will answer it, and maps the structure of the chapters that follow. For a 10,000-word dissertation that usually takes 800–1,000 words. Write it last — or at least rewrite it last — because only a finished project knows what it actually set out to do. An introduction that promises one dissertation while the chapters deliver another is one of the most common and most avoidable reasons markers lose confidence early.
The introduction is the chapter students write first and markers read most carefully, and that mismatch explains most of its failures. Written at the start, it describes the dissertation you imagined; read at the end, it is judged against the dissertation you produced. Everything in this guide follows from treating the introduction as a contract: drafted early as a plan if you must, but finalised only when you know exactly what the contract needs to say. If you are still at the planning stage, our dissertation proposal help page covers the earlier document your introduction will eventually grow out of.
The five jobs, in order
1. Establish the territory
Open on the broad field and narrow quickly: what area this is, why it matters now, and what is at stake in it. Two or three paragraphs at most. The failure mode is the history-of-the-world opening — “Since the dawn of time, humans have…” — which spends your marker’s patience before you have said anything. Start as close to your topic as honesty allows: a current statistic, a live debate, a practical problem, a recognised puzzle in the literature.
2. Identify the gap or problem
This is the paragraph the whole dissertation hangs on. What is not known, not settled, not tested in this context, or not working in practice? Name it precisely. “Little research exists on X” is weak unless you can say what the existing research covers instead and why the uncovered part matters. A gap nobody cares about is not a justification; a gap whose filling changes a decision, a theory or a practice is.
3. State the question, aims and objectives
One research question, stated as a question, that the dissertation can actually answer with the methods and access you have. Then the aim (the overall intent, one sentence) and the objectives (the three to five steps that deliver it, each beginning with a measurable verb — assess, compare, evaluate, identify). Your conclusion will be marked against these objectives one by one, so write them as promises you can keep.
4. Sketch the method
Three to five sentences: your approach, your data or sources, and why that design fits the question. Detail belongs to the methodology chapter; the introduction needs only enough for the reader to trust that the question and the method belong together.
5. Map the structure
One short paragraph or sentence per chapter saying what each does and how it serves the question. This is not filler — markers use it as the table of contents for your argument, and writing it forces you to notice any chapter that cannot justify its place.
Three elements students forget: significance, scope and key terms
Significance. The gap paragraph says what is missing; the significance sentences say why filling it matters, and to whom. Cover both audiences where you honestly can: the academic contribution (what the findings add to, test or complicate in the existing literature) and the practical contribution (whose decision, practice or policy your findings could inform). Keep the claims proportionate — a modest project honestly framed beats a small study claiming to transform a field, and markers are trained to discount inflation on sight.
Scope and delimitations. State your boundaries deliberately: the population, setting, time period and aspects you cover — and, just as importantly, what you chose not to cover and why. Delimitations are choices you defend, not weaknesses you confess; a sentence or two in the introduction protects you later, because a marker cannot fairly fault a study for excluding something it announced it was excluding. (Limitations — the constraints you did not choose — usually live in the methodology or conclusion, though some universities ask for a brief acknowledgement here; follow your handbook.)
Key terms and the theoretical frame. If your title contains a contested or technical term, define how this project uses it. Likewise, if a theory or model guides the whole study, name it in a sentence or two so the literature review’s framework section does not arrive unannounced. A quantitative project should also state any hypotheses here alongside the research questions, in the testable form the results chapter will answer.
What a strong opening paragraph looks like
Compare two openings for a project on nurse retention. The weak version: “The NHS is a healthcare system in the United Kingdom. It was founded in 1948. Staffing is very important in healthcare. This dissertation will look at nurse retention.” Every sentence is true; nothing argues for the project. The strong version: “One in nine nursing posts in England is vacant, and trusts spend heavily on agency cover for roles they cannot retain staff in. Most retention research examines why nurses leave hospital trusts in general; far less examines the first two years after qualification, when leaving rates peak. This dissertation examines that window.” Territory, stakes, gap, project — in four sentences. Notice it also makes a claim about the literature that the literature review chapter must now back up, which is what a contract means.
The mistakes that cost marks
Writing it first and never revisiting it. The single largest cause of introductions that describe a different dissertation. Findings announced early. Your results do not belong here; an introduction that reveals conclusions reads as though the inquiry was theatre. A literature review in miniature. Context means a handful of framing references, not a compressed chapter two — if a citation’s detail matters, it belongs in the review itself (our guide to how to write a literature review covers that chapter’s own job). Objectives that cannot be checked. “To understand X better” cannot be met or missed, so it cannot be marked; rewrite it until your conclusion could tick it off. And scope drift: an introduction promising three populations, two countries and a decade, from a project that interviewed eight people.
When to write it — and in what order to draft
Draft the territory, gap and question sections early, because they discipline the whole project. Draft the structure map in the middle, when the chapters exist in outline. Write the final version after the conclusion, in one sitting, reading your own dissertation as a stranger would and making the introduction tell the truth about it. Then read the introduction and conclusion back to back: every promise in the first should be visibly kept in the second — our guide to how to write a dissertation conclusion shows the other half of that contract. If the two disagree, the introduction is the cheaper one to fix.
How long should it be? Proportions by dissertation size
The standard allowance is roughly a tenth of the whole. For a 10,000-word undergraduate dissertation, aim for 800–1,000 words; for a 15,000-word Masters dissertation, 1,200–1,500. Within that space, the proportions matter more than the total: territory and gap together should take about half, because justification is the introduction’s real work; question, aims and objectives about a quarter — they are short by nature and padding them reads as uncertainty; method sketch and structure map share the rest. If your introduction is running long, the excess is almost always territory: background that belongs in the literature review wearing an introductory costume. Cut from the front, not from the gap paragraph — the gap is the one part of the chapter that cannot be shortened without weakening the entire project’s claim to exist. Conversely, if the introduction is very short, check the objectives first: thin objectives usually mean the project’s steps were never made explicit, and the chapters will show the same vagueness.
Dissertation introduction questions
Should the introduction include references?
Yes, but few. The territory and gap paragraphs need enough citation to show the gap is real — typically a handful of framing sources, not the full literature. If a reference needs a paragraph of explanation, it belongs in the literature review, not here.
Can I state my findings in the introduction?
Generally no. You may signal the direction of the study, but announcing results before the evidence appears undermines the inquiry the chapters then perform. One exception: some professional doctorates and practice-based projects summarise the artefact or intervention briefly — follow your programme’s convention if it differs.
How many research questions should an introduction state?
Usually one main question, sometimes broken into two or three sub-questions that map onto the objectives. More than that, and the project is probably two projects — narrow it before you write further.
Is the introduction the same as the abstract?
No. The abstract is a self-contained summary of the whole finished dissertation, including findings, written last of all; the introduction sets the study up without reporting its results. Confusing the two — especially importing findings into the introduction — is a common and easily avoided error.
If the introduction will not come together
A stuck introduction usually signals a stuck project: the gap is not yet clear, or the objectives were never made checkable. Fixing the chapter means fixing the thinking, which is why a model introduction built on your actual project is such effective help — it shows the contract written properly for your question, and the gaps in the project itself become visible while there is still time to close them. Our dissertation help service works chapter by chapter at published prices from £20 per 1,000 words, and our dissertation chapter help page covers single-chapter support if the introduction is the only chapter defeating you. Send your title, question and chapter drafts on WhatsApp for a free, exact quote.