How to Analyze Interview Data in TESOL Research: A Step-by-Step Guide

By Dalat TESOL
Supporting graduate students in qualitative inquiry and TESOL research


📌 Introduction

“I had ten pages of transcripts and no idea where to begin.”
If this sounds familiar, you’re not alone.

Many graduate students in TESOL feel overwhelmed when facing interview data for the first time. After hours of recording and transcribing, the big question arises:
How do I actually analyze all of this?

This article walks you through a clear, beginner-friendly approach to analyzing interview data, from first read-through to reporting themes — with examples from TESOL research contexts.


🎯 What Is Qualitative Data Analysis?

Qualitative analysis is about interpreting meaning from language-based data — like interview transcripts, teacher reflections, or classroom observations.

In TESOL, interviews can reveal:

  • Learner beliefs and attitudes
  • Teacher classroom decision-making
  • Institutional challenges in implementing new pedagogy (e.g., project-based learning, AI integration)

The goal is not just to describe what was said, but to understand patterns, identify themes, and connect findings to your research questions.


🛠 Step-by-Step: Analyzing Interview Data


1. Transcribe and Organize

Start by:

  • Transcribing your interviews word-for-word (verbatim)
  • Replacing names with pseudonyms or participant codes
  • Storing files securely with clear file names

Pro Tip: Keep a spreadsheet with participant info, codes, and context notes.


2. Familiarize Yourself with the Data

Before coding, read through each transcript several times.

  • Highlight interesting phrases
  • Write memos (brief thoughts or reactions)
  • Ask yourself: What’s surprising? What’s repeated?

Memo example: “This teacher supports innovation but seems fearful of losing classroom control.”

This phase helps you absorb the tone, emotion, and structure of your participants’ responses.


3. Code the Data

Coding is assigning labels to meaningful chunks of data (phrases, sentences, or paragraphs).

There are two main approaches:

Coding TypeDescriptionTESOL Example
DeductiveBased on a theory, framework, or pre-set categoriesUsing the CEFR model to code for “grammatical competence” and “strategic competence”
InductiveEmerges directly from the data, without pre-set categoriesCodes like “fear of misusing AI” or “pressure to conform” that arise naturally during reading

✅ You can code by hand (highlighting and margin notes) or use tools like MAXQDA, NVivo, or Atlas.ti.


4. Group Codes into Themes

Once all your data is coded, look for patterns and group related codes together into categories or themes.

Example CodesTheme
“I feel nervous using AI”
“I’m scared it gives wrong info”
“I don’t want students to rely on it”Teacher Uncertainty Toward AI Tools

Themes are the building blocks of your findings chapter.


5. Review and Define Themes

Make sure each theme is:

  • Distinct (not overlapping too much)
  • Clear and relevant to your research question
  • Supported by data (direct quotes, not assumptions)

✅ Avoid generic labels like “Problems in Teaching” — instead, use specific themes like:

“Balancing Control and Autonomy in AI-Assisted Classrooms”


6. Interpret and Connect to Literature

Now move from what was said to why it matters:

“While teachers acknowledged the potential of AI tools, their fear of student over-reliance echoes findings from Teng (2024), who noted similar tensions in Hong Kong secondary schools.”

Good qualitative analysis weaves participant voices with theoretical insights.


7. Report the Findings Clearly

Use a consistent structure for each theme:

  1. Theme title
  2. Short explanation of the theme
  3. Key quotes
  4. Your interpretation and link to research questions or theory
Example:

Theme 2: Trust and Control in AI Integration
Several teachers expressed discomfort with students using ChatGPT freely.

“I feel like they might use it to cheat, not learn.” (T4)

This concern highlights the tension between promoting learner autonomy and maintaining academic integrity, especially in AI-mediated contexts (Zou et al., 2024).


🧾 Sample Findings Chapter Structure

SectionWhat to Include
IntroRestate the aim and structure of the findings
Theme 1Explanation, quotes, interpretation
Theme 2Same
Theme 3 (optional)Same
SummaryKey insights, transitions to discussion

🔐 Ethical Considerations

Don’t forget:

  • Use pseudonyms to protect identities
  • Avoid sharing sensitive or traceable details
  • Secure transcripts and consent forms
  • When in doubt, check with your supervisor or ethics board

⚠️ Common Pitfalls to Avoid

PitfallSolution
Just listing quotesAdd interpretation and thematic linkage
Over-relying on one participantLook across multiple voices
Mixing unrelated ideas in one themeSplit or reorganize for clarity
Not answering your RQsAlways link back to the questions
Ignoring literatureFrame your insights within scholarly conversations

✍️ Final Tips

  • Begin coding with just one short transcript to build confidence
  • Keep a codebook with definitions and examples for each code
  • Reflect regularly — analytic memos are your friend
  • Don’t rush — qualitative analysis is iterative, and that’s okay

📣 Ready to practice?
Try this: Take a 5-minute excerpt from your interview, highlight key phrases, assign tentative codes, and write down 2–3 observations in a memo.


🌿 Dalat TESOL – Chia sẻ kiến thức giảng dạy, nghiên cứu khoa học và cơ hội xuất bản

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