What To Put In Introduction Of A Research Paper | Score

You’re staring at a page, and the pressure is real. The introduction has one job: earn a reader’s trust fast. Do that, and the rest of your paper gets read with patience instead of doubt.

This guide breaks the introduction into parts you can draft. You’ll see what each part does and how to keep your wording clean.

What To Put In Introduction Of A Research Paper

Think of your introduction as five moves that flow in order. Stuck on what to put in introduction of a research paper? Use the table. Start broad, narrow to the gap, state your aim, commit to a claim, then show what comes next. You don’t need the same length every time, yet you do need the same logic.

As a rough target, many student papers land well at 10–15% introduction. A 10-page paper often needs about one page.

Part	What It Does	What To Write
Topic setup	Shows the general area and stakes	Name the topic, then give 1–2 sentences of background a new reader can follow.
Problem or gap	Explains what’s missing, unclear, or debated	Point to a mismatch: mixed findings, outdated data, a local case, or an untested angle.
Purpose statement	Tells what your paper will do	Use a direct verb: “This paper tests…,” “This paper compares…,” “This paper explains…”.
Research question	Frames the exact thing you’re answering	Write one clear question, or two linked questions, in plain words.
Thesis or main claim	States your answer or position	Make a claim you can back up with evidence, not a wish or a slogan.
Scope and limits	Sets boundaries so readers don’t expect a different paper	Say what you include, what you leave out, and the time, place, or sample you center on.
Core terms	Prevents confusion over words that can mean two things	Define 1–3 terms your reader must understand to follow your claim.
Method preview	Builds trust in how you got your answer	Give the method in one sentence: design, data source, and what you measured.
Reader map sentence	Orients readers to the paper’s order	In one sentence, name the main sections in the order they appear.

Start With The Topic And The Stakes

Your first lines should tell a reader what they just opened. Name the topic with concrete nouns, not foggy labels. Then add one or two background sentences that set the stakes in plain terms.

“Stakes” doesn’t mean drama. It means why a reader should care: a cost, a risk, a trade-off, a decision, a rule, a learning gap, or an outcome tied to the topic.

Pick One Clean Entry Style

Choose one opening style and stick with it for a few sentences.

• Problem-first: Start with a problem your paper will solve, stated in one tight sentence.
• Context-first: Start with background a reader needs before your question makes sense.
• Definition-first: Start by defining a term that readers often misuse.

Move From Background To A Specific Gap

A strong introduction sets up a reason for your paper to exist. That reason is the gap: what readers still don’t know after the background, or what writers keep getting wrong.

If you want a quick checklist for testing your opening, the UNC Writing Center introductions handout is a solid reference.

Gaps come in many shapes. You might have sources that point in different directions. You might have plenty of data, yet not on the group your class cares about.

Draft The Gap In One Sentence First

Before you write a full paragraph, draft a single gap sentence. If you can’t say the gap in one sentence, your focus may still be too wide.

• Mixed results: “Prior studies disagree on whether X changes Y in Z settings.”
• Missing angle: “Few studies test X among group Y during period Z.”
• Outdated source base: “Most guidance on X relies on data older than year Y.”
• Term confusion: “Writers often treat X and Y as the same thing, yet they differ in …”

State Your Purpose And Research Question

Once you’ve set the gap, tell the reader what you will do about it. This is the purpose statement. Keep it short and active. A reader should be able to underline it and know your task.

Right after the purpose, state your research question. If your assignment wants a hypothesis, add it here too. In a literature review, the guiding question can be a sorting question: what patterns show up across sources, and what explains the differences.

Purpose Verbs That Stay Clear

These verbs keep your purpose statement direct:

• tests, compares, evaluates, measures, describes
• explains, traces, estimates, identifies

Write A Thesis That Makes A Claim

The thesis is your answer in a sentence or two. It’s not a topic, and it’s not a promise to talk about something. It’s a claim the body of the paper will back up with evidence and reasoning.

In an argument paper, your thesis states your position. In an empirical report, your thesis may be your main finding or your predicted finding, based on what your instructor wants.

Three Quick Tests For A Strong Thesis

• Specific: A reader can tell what you mean without guessing your definitions.
• Arguable: A smart reader could disagree, so your paper has work to do.
• Provable: You can back it up with sources, data, or close reading.

Define Terms And Set Scope Early

Readers don’t read minds. If your paper uses a term that shifts meaning across fields, define it early. A quick definition can prevent pages of confusion.

Scope is the other half of clarity. It tells the reader what this paper is not. Scope lines can be short: time span, place, sample, or source set. They stop your reader from asking, “Why didn’t you include X?” when X was never your task.

Where Definitions Belong

If a term is central to your claim, define it before the thesis or right after it. If it’s a minor label, define it the first time it appears in the body.

What To Include In A Research Paper Introduction For A Clean Start

Here’s a build order you can follow when you draft. Write each part as a mini-block, then stitch them together and cut repeats.

1. Background block (3–6 sentences): Topic + stakes + what readers already know.
2. Gap block (1–3 sentences): What’s missing or unclear.
3. Purpose + question block (2–4 sentences): What you will do and what you will answer.
4. Thesis block (1–2 sentences): Your claim or expected finding.
5. Scope + method block (2–4 sentences): Boundaries and a short method preview.
6. Reader map block (1 sentence): The order of major sections.

If you write in APA Style, many instructors don’t want an “Introduction” heading at all; the first section starts right after the title. The APA Style student paper setup guide spells out that convention.

Match The Introduction To Your Paper Type

Not every research paper uses the same shape. The intro parts stay similar, but the weight shifts depending on what you’re writing.

Empirical Study Or Lab Report

Lean on prior findings and the gap, then end with a clear hypothesis or prediction. Keep method preview short.

Literature Review

Make the gap about the source base, then state a synthesis claim that names the pattern you see across sources.

Argument Or Position Paper

Move to the thesis sooner and state your stance clearly.

Write The Reader Map Without Sounding Robotic

You just need one sentence that tells the reader what comes next. Keep it plain and specific.

Try a structure like this: “First, the paper reviews X. Next, it lays out Y. Then, it tests Z using A. Last, it explains what the results mean for B.” Adjust the verbs to match your sections.

Move	Sentence Pattern	When To Use It
Background	“X affects Y in Z settings, which shapes …”	When readers need quick context before your question.
Gap	“Yet, studies on X disagree about …”	When prior work points in more than one direction.
Purpose	“This paper compares X and Y to find …”	When your task is comparison or evaluation.
Question	“The paper asks: How does X change Y in Z?”	When an explicit question fits your assignment.
Thesis	“The evidence shows that X leads to Y because …”	When you have a clear claim you can back up.
Scope	“This paper focuses on X in Y during Z, not …”	When you must limit time, place, or source set.
Method preview	“To answer the question, the study uses …”	When readers need a quick trust signal about method.
Reader map	“The next section explains …, then …, then …”	When your paper has three or more major sections.

Avoid These Common Introduction Traps

Even strong writers trip on the same few issues. Fixing them early saves you a rewrite later.

Trap 1: The “History Of The World” Start

If your first paragraph could fit a thousand topics, it’s too broad. Start closer to your real question.

Trap 2: A Thesis That Isn’t A Claim

“This paper will talk about X” is a plan, not a thesis. Swap it for a sentence that takes a position or states a finding.

Trap 3: Dropping Quotes Too Early

Don’t open with a quote unless you can tie it to your exact gap in the next sentence.

Trap 4: Overloading The Introduction With Method Detail

A method preview is a teaser, not the full play-by-play. Save details for Methods so your intro stays readable.

Trap 5: Promising More Than The Paper Delivers

Readers spot overpromises fast. If you can’t back a claim with your sources or data, soften it or cut it.

Draft And Revise In Two Tight Passes

Write your six blocks, then read them out loud. Cut repeats and tighten verbs.

Mini Checklist Before You Submit

• My first paragraph names the topic and the stakes in plain words.
• I state the gap in one sentence that feels specific, not generic.
• I include a clear purpose statement with an action verb.
• I include a research question or a tight guiding question.
• I state a thesis that makes a claim I can back up.
• I set scope so readers know what this paper will not do.
• I give a one-sentence reader map when the paper has many sections.

When you’re stuck, write the thesis first, even if it’s rough. Then write the background and gap to lead into that claim. It’s a quick way to turn a fuzzy start into a sharp one.

If you landed here asking what to put in introduction of a research paper, borrow the five moves near the top, draft them as blocks, then trim hard.