How to write a thesis introduction — background, problem, aims and questions (2026)
Learn how to write a thesis introduction that moves from broad context to a specific research problem, states clear aims and questions, and sets up every chapter that follows.
Most students learn how to write a thesis introduction the expensive way: they produce 8 pages of general background, hand it to a supervisor, and get it back with a single comment — “so what is the actual research problem?” The introduction is not a warm-up. It is the chapter that tells an examiner what you studied, why it needed studying, and what question the remaining 60 pages answer. Everything after it is judged against the promise you make here. This guide gives you the funnel structure, the difference between an aim and an objective, a way to phrase questions that can actually be answered with your data, and an annotated example you can adapt to any discipline.
What a thesis introduction must achieve
An introduction has two jobs, and students usually do only the first. Job one is orientation: give a reader who is not a specialist in your subfield enough context to follow the rest of the thesis. Job two is justification: convince that same reader the study was worth doing. A chapter that only orients reads like an encyclopedia entry. A chapter that only justifies reads like a grant pitch with no substance.
A typical bachelor’s introduction runs 3 to 6 pages; a master’s introduction runs 5 to 10. That is between 900 and 3,000 words to establish context, problem, aim, questions, scope, and structure. The budget is tight, which is why the background section has to be ruthlessly pruned — its job is to reach your problem, not to demonstrate everything you read.
Note: Your introduction is a contract. If you promise to examine three factors, the examiner will look for three factors in your results chapter. Never promise more than your data can deliver.
The funnel structure of a thesis introduction
The funnel is the standard shape across nearly every discipline: start wide enough that any reader in your faculty understands the field, then narrow in deliberate steps until only your specific problem is left standing.
| Stage | Length | What it does |
|---|---|---|
| Broad context | 15-20% | Establishes the field and why it matters now |
| Narrowing | 25-30% | Reviews what is known, moves toward your niche |
| Research problem | 15% | States the gap or practical problem precisely |
| Aim and questions | 20% | Declares what you will do about it |
| Scope and roadmap | 15-20% | Sets boundaries and maps the chapters |
Stage 1 — broad context that earns its place
One or two paragraphs. Anchor the topic in something concrete: a policy change, a measurable trend, a technology shift, a documented problem in practice. Avoid the universal opener — “Communication has always been a fundamental part of human society” says nothing and signals a weak thesis from the first sentence.
Stage 2 — narrowing toward your niche
This is a compressed preview of your literature review, not a duplicate of it. Name 3 to 6 key studies or positions, group them, and show the direction the field has moved. If you find yourself citing 25 sources here, you are writing chapter two by mistake — move that material into your literature review chapter and leave a summary behind.
Stage 3 — landing on the problem
The narrowing must end somewhere specific. By the last paragraph of this stage the reader should be able to finish the sentence “so nobody has yet examined…” without your help.
How to write the research problem and gap statement
A research problem is not a topic. “Remote work and employee motivation” is a topic. A problem states a tension: something is not known, not measured, contested, or failing in practice. The cleanest way to write one is a three-move paragraph.
Move 1 — what is established. “Research consistently links autonomy to intrinsic motivation in office settings.”
Move 2 — what is missing or contested. “However, studies conducted after 2020 report conflicting results for fully remote teams, and Polish SMEs are almost absent from the samples.”
Move 3 — why the gap matters. “Without evidence from this context, HR departments apply guidance developed for conditions that no longer describe how their teams work.”
Move 3 is the one students skip, and it is the one that turns a gap into a justification. A gap alone is not a reason to do research — plenty of things are unstudied because they are not worth studying. Tools like Google Scholar make it easy to confirm a gap is real by checking whether recent work has already closed it; do this before you commit, because a gap that disappeared in 2025 will be found by your reviewer.
Aim, objectives, research questions and hypotheses
These four terms get used interchangeably in student drafts and precisely in examiner rubrics. The distinctions are worth 20 minutes of your time.
| Term | What it is | Typical count | Example |
|---|---|---|---|
| Aim | The single overall purpose | 1 | To assess how autonomy affects motivation in remote Polish SMEs |
| Objectives | Concrete steps that reach the aim | 3-5 | To measure perceived autonomy; to compare across tenure groups |
| Research questions | What the study asks | 2-4 | How does perceived autonomy relate to reported motivation? |
| Hypotheses | Testable predicted answers | 0-4 | Higher perceived autonomy is associated with higher motivation |
Aim versus objectives
An aim is a destination; objectives are the route. Write the aim as one sentence beginning with an infinitive — “The aim of this thesis is to determine…” Objectives use action verbs that map onto things you will actually do: measure, compare, identify, evaluate, model. If an objective cannot be traced to a section of your results chapter, delete it.
Phrasing questions that can be answered
A good research question is specific, answerable with your method, and neutral. Test each one against three checks: Does it name the variables or phenomena? Could two competent researchers agree on what evidence would answer it? Does it avoid assuming the answer?
| Weak question | Why it fails | Stronger version |
|---|---|---|
| Is remote work good? | Vague, evaluative, unanswerable | How do remote employees rate autonomy compared to hybrid employees? |
| Why do students procrastinate? | Too broad for one study | Which self-reported factors do first-year students associate with delayed assignment starts? |
| Doesn’t AI harm learning? | Assumes the answer | What effect does AI tool use have on reported assignment completion time? |
When you need hypotheses
Quantitative studies testing relationships need hypotheses; exploratory qualitative studies usually do not, and inventing them creates a mismatch your examiner will notice. If you do state them, phrase each as a directional, testable claim and make sure your methodology chapter explains the test that will evaluate it. Reporting standards published by the American Psychological Association are a useful reference for how hypotheses and analyses should be stated in empirical work.
Scope, delimitations and the outline paragraph
Stating what the study does not cover
Delimitations are the boundaries you chose: population, time frame, geography, method, variables excluded. Two or three sentences are enough. This is not an apology — it is a defense. An examiner who reads “this study covers only manufacturing SMEs in Lesser Poland between 2024 and 2026” cannot later criticize you for ignoring the service sector, because you declared it out of scope. Limitations, by contrast, are weaknesses you did not choose; those belong in the discussion and conclusion.
The roadmap paragraph
Close the introduction with one paragraph mapping the chapters: “Chapter 2 reviews literature on autonomy and motivation. Chapter 3 describes the survey design and sample. Chapter 4 presents results. Chapter 5 discusses them against prior findings and states conclusions.” Plain and mechanical is correct here — this paragraph is a navigation aid, not a place for style.
If drafting this scaffolding from an empty document is where you stall, the Smart-Edu bachelor’s thesis generator produces a complete thesis with chapter structure, bibliography, and a matching introduction in 30-90 minutes from 249 PLN, following the same funnel logic described above — useful as a starting draft you then adapt to your supervisor’s requirements.
When to write the introduction — first, last, or both
Write a draft first, rewrite it last. The pragmatic answer is that you need the introduction early as a planning document: writing the aim and questions forces decisions you cannot postpone. But the introduction you write in month one describes a study you have not done yet. After your results are in, roughly 40% of that text will be wrong — the scope narrowed, one question turned out to be unanswerable, the framing shifted.
So treat version one as a working contract with yourself, then rewrite it against the finished thesis. At that point check the mirror: your conclusion chapter should answer, in the same order and using the same wording, every question the introduction asked. If the conclusion answers questions the introduction never posed, one of the two chapters is lying about what your thesis did.
Annotated example of an introduction opening
Between 2020 and 2025 the share of Polish SMEs employing at least one fully remote worker rose sharply, moving a management practice that was once exceptional into the mainstream. [Concrete, dated context — not a universal truth] Research on work motivation has long identified autonomy as a central driver of intrinsic motivation, and this relationship is well documented in traditional office environments. [Established knowledge, compressed] Evidence from fully remote arrangements, however, is inconsistent: some studies report that distance amplifies the motivational benefit of autonomy, while others find that reduced supervisory contact weakens it. Polish SMEs are largely absent from these samples. [The gap, stated precisely] As a result, HR practitioners in this sector apply recommendations derived from conditions that no longer describe their teams. [Why the gap matters] The aim of this thesis is therefore to determine how perceived autonomy relates to reported work motivation among employees of fully remote Polish SMEs. [Single-sentence aim, infinitive form]
Six sentences, and a reader already knows the field, the tension, the gap, the stake, and the aim. Compare that to the four pages of general background most first drafts open with.
Common mistakes in thesis introductions
| Mistake | Consequence | Fix |
|---|---|---|
| Background that never narrows | Reader cannot find the problem | Cut until each paragraph is more specific than the last |
| No explicit gap statement | Study looks unmotivated | Add the three-move problem paragraph |
| Aim and questions that do not match | Structural incoherence flagged at defense | Rewrite so each question serves the aim |
| Questions your data cannot answer | Unanswerable in the results chapter | Check every question against your method |
| Literature review duplicated in the introduction | Chapter 2 becomes redundant | Keep 3-6 key sources, move the rest |
| Introduction never updated after results | Contradicts your own findings | Rewrite it as the final editing task |
Tip: Before submitting, read only your aim, your research questions, and your conclusion chapter’s answers. If they do not line up one-to-one, fix the introduction — it is easier to change than the study.
Frequently asked questions about thesis introductions
How long should a thesis introduction be?
Roughly 8-10% of the total word count. For a 12,000-word bachelor’s thesis that is about 1,000-1,200 words; for a 25,000-word master’s thesis, 2,000-2,500. Check your department’s guidelines first, since some faculties specify exact page ranges.
Should the introduction include citations?
Yes, but sparingly — typically 5 to 15 references. You cite enough to establish that the field exists and the gap is real, then stop. Dense citation belongs in the literature review.
Is the introduction the same as an abstract?
No. An abstract summarizes the entire completed study including results and conclusions, usually in 150-300 words. The introduction sets up the study and deliberately does not reveal findings.
Can I write the introduction before choosing my method?
You can draft the context and problem, but the aim and questions will keep shifting until the method is settled, because a question you cannot operationalize is not a research question. If your topic is still moving, work through choosing a thesis topic before drafting.
How many research questions should a thesis have?
Two to four for a bachelor’s thesis, three to five for a master’s. One question often signals a study that is too thin; six or more usually means several of them are really sub-questions and should be grouped.
Do I state hypotheses in a qualitative thesis?
Generally no. Qualitative studies explore rather than test, so research questions are sufficient. Adding hypotheses to an exploratory design creates an inconsistency between your introduction and your analysis.
Summary
Knowing how to write a thesis introduction comes down to controlling the narrowing: broad context that earns its place, a compressed review that points somewhere, a problem stated in three moves, one aim, two to four answerable questions, honest delimitations, and a plain roadmap. Draft it early so it guides your work, then rewrite it at the end so it describes the thesis you actually produced — and check that every question it asks gets answered, in the same words, by the time the reader reaches your conclusion.