Interviews

Conceptual Framework

An interview is a purposeful conversation between a researcher and a participant. Unlike one-directional instruments such as questionnaires, interviews allow the researcher to grasp meaning, context, and lived experience from the participant's own perspective. This interactive structure transforms not only what participants say but also how they say it into data. Interviews can be conducted one-on-one, in focus-group format, or online. The method occupies a central role in qualitative traditions such as phenomenology, grounded theory, and ethnography.

Types and Implementation Steps

In structured interviews, questions are fixed in advance and asked in a set order; this format suits large-scale studies or mixed-methods designs requiring comparability. Semi-structured interviews use a prepared guide but allow the researcher to add probing questions or alter the sequence based on responses, balancing consistency with depth. Unstructured interviews begin with only a broad topic; the researcher intervenes minimally, enabling the participant to shape the narrative. In practice, conducting a pilot interview before full data collection is essential to test the guide's validity and clarity.

Concrete Application Example

Consider an education researcher studying teachers' experiences with remote instruction. In a structured interview, each teacher is asked the identical question: "What was the biggest technical obstacle you encountered in remote teaching?" In a semi-structured format, the same question serves as a starting point; when a response is particularly revealing, the researcher adds probes such as "Could you elaborate on that?" In an unstructured format, the researcher simply opens with "Could you tell me about your experience of teaching remotely?" and lets the participant determine the direction of the conversation.

Common Pitfalls and Good Practice Principles

Among the most common pitfalls is the use of leading questions; phrasing such as "Did this process affect you negatively?" can steer participants toward a particular response. Social desirability bias causes participants to give answers they believe will earn the researcher's approval rather than their genuine views. Building rapport, ensuring anonymity, and practising active listening reduce these risks. Conducting interviews face-to-face, by telephone, or via video may affect data quality, so consistency of medium within a study warrants attention. When audio recording, written informed consent is mandatory, and transcription accuracy should be supported through member checking.

Key terms

Structured Interview

Interview format using a fixed question script administered identically to all participants.

Semi-Structured Interview

Interview format using a guide but permitting probing questions and sequence flexibility.

Unstructured Interview

Open exploratory interview beginning with only a broad topic, guided by the participant's narrative.

Interviewer Effect

Influence of the researcher's manner, tone, or appearance on participant responses.

Member Checking

Process of verifying transcript or finding accuracy with the participant.