Qualitative Research
Qualitative research is an interpretive, naturalistic approach that seeks to understand phenomena from participants' perspectives within their natural contexts. Rather than testing hypotheses with numerical data, qualitative researchers work with words, images, and observations to explore meaning, experience, and social processes.
Core Principles
- Naturalistic inquiry — phenomena are studied in their real-world settings, not controlled laboratories
- Interpretive stance — the researcher interprets meaning rather than measuring variables
- Emic perspective — understanding from the participants' point of view, not imposed categories
- Context-dependence — meaning is inseparable from the situation in which it occurs
- Emergent design — research questions and methods may evolve as data collection proceeds
In Applied Linguistics
Qualitative research in SLA and language education includes:
- Case studies — in-depth investigation of individual learners, teachers, or classrooms
- Ethnography — prolonged immersion in a community or classroom culture
- Narrative inquiry — examining language learning experiences through personal stories
- Grounded theory — generating theory from data through systematic coding (Glaser & Strauss, 1967)
- Phenomenology — exploring the lived experience of a phenomenon (e.g., what it feels like to be a heritage language learner)
- Discourse Analysis and Conversation Analysis — examining language use in interaction
Data Collection Methods
- Semi-structured and unstructured interviews
- Classroom Observation — participant and non-participant
- Think-aloud protocols and Stimulated Recall
- Learner diaries and journals
- Document analysis (textbooks, curricula, learner writing)
- Field notes
Trustworthiness Criteria
Lincoln & Guba (1985) proposed four criteria as qualitative parallels to quantitative validity and reliability:
| Quantitative term | Qualitative equivalent | Strategies |
|---|---|---|
| Internal validity | Credibility | Prolonged engagement, Triangulation, member checking, peer debriefing |
| External validity | Transferability | Thick description enabling readers to judge applicability |
| Reliability | Dependability | Audit trail documenting decisions |
| Objectivity | Confirmability | Evidence grounding, reflexivity |
Data Analysis
- Thematic analysis — identifying recurring themes across data (Braun & Clarke, 2006)
- Coding — open, axial, and selective coding (grounded theory tradition)
- Constant comparison — continuously comparing new data with existing codes and categories
- Narrative analysis — examining story structure, positioning, and identity construction
Criticisms and Responses
Critics question generalisability, subjectivity, and replicability. Qualitative researchers respond that the goal is not generalisation but transferability, not objectivity but reflexive transparency, and not replication but trustworthy interpretation.
Key References
- Lincoln & Guba (1985) — Naturalistic Inquiry
- Denzin & Lincoln (2018) — The SAGE Handbook of Qualitative Research (5th ed.)
- Richards (2003) — qualitative inquiry in TESOL
- Holliday (2016) — Doing and Writing Qualitative Research (3rd ed.)