How to Write an Introduction Using the CARS Model

John Swales' Create a Research Space (CARS) model provides a proven framework for writing journal article and thesis introductions. Learn the three rhetorical moves that guide readers from broad context to your specific contribution.

3 Core Rhetorical Moves
12+ Writing Strategies
95% Disciplinary Applicability
The Three CARS Moves at a Glance
1
Establishing a Territory

Show that the research area is important, interesting, and worthy of investigation through background and citations.

2
Establishing a Niche

Identify a gap, problem, or unanswered question in existing literature that your study will address.

3
Occupying the Niche

State how your research fills the gap, present your purpose statement, and outline your paper's structure.

The Three CARS Moves Explained

A step-by-step breakdown of Swales' influential model with examples

M1
Move 1

Establishing a Territory

Demonstrate the significance of your research area. Convince readers that the topic is worth investigating through strategic citations.

Example Phrase

"The relationship between X and Y has received considerable attention in recent years due to..."

  • Claim centrality of the topic
  • Make generalisations about the field
  • Review key items of previous research
M2
Move 2

Establishing a Niche

Create a research space by identifying what remains unknown, unresolved, or underexplored in existing literature.

Example Phrase

"However, no previous study has examined the effects of X on Y in the context of Z..."

  • Counter-claiming existing work
  • Indicating a specific research gap
  • Raising a question or problem
M3
Move 3

Occupying the Niche

Present your research as the solution to the gap. State your purpose, methods, and contribution clearly.

Example Phrase

"This study aims to investigate the effects of X on Y using [methodology] to address this gap..."

  • Outlining purposes of the study
  • Announcing principal findings
  • Indicating article structure

Writing Tips for a Strong Introduction

Proven strategies from published authors and dissertation chairs

Hook with Context, Not Definitions

Start with a compelling fact, statistic, or problem statement - not a dictionary definition. Engage readers immediately with real-world relevance.

Funnel from Broad to Specific

Begin with general background, then progressively narrow to your specific research question. Each paragraph should become more focused.

State Your Research Gap Clearly

Use explicit gap indicators: "However," "Despite this," "What remains unknown," "A notable limitation is..." Make the gap unmistakable.

Introduction Funnel Structure

From broad context to your specific contribution

1
Broad Background & Context of the Field
2
Narrowing: Specific Problem or Area of Interest
3
Literature Review & Key References (Synthesised)
4
Identified Gap or Unanswered Research Question
5
Your Research Aim / Research Question
6
Contribution Statement & Paper Structure Overview

Common Mistakes to Avoid

These introduction errors can undermine your paper before reviewers reach the methods section

Starting with a Dictionary Definition

Opening with "According to Merriam-Webster..." is clichéd and wastes valuable space that could engage readers.

Start with context instead
Being Too Broad or Too Narrow

Global statements about humanity or overly specific technical details without context both lose readers.

Use the funnel approach
Missing the Research Gap

Reviewers need an explicit "so what?" - why does your study matter? What is missing from current knowledge?

Clearly state what's unknown
Repeating the Abstract Verbatim

The introduction should expand on the abstract, not copy it. Add contextual depth and background information.

Add contextual depth