Research Methodologies: Narrative research, Phenomenology, Grounded Theory, Ethnography, Case Study

Five widely used qualitative research methodologies differ less in “what data to collect” than in what each approach treats as the central target: an individual’s lived story, shared meaning across people, theory that emerges from data, culture in everyday settings, or an in-depth look at a bounded system. Picking the right one comes down to whether the study aims to foreground personal identity and researcher–participant co-construction (narrative), common themes across a group (phenomenology), explanation built from data without preconceptions (grounded theory), cultural norms and values in context (ethnography), or a specific case defined by boundaries and a focused question (case study).

Narrative research centers on lived experience—most often one person, sometimes two or a small group. Researchers gather participants’ stories and then order the meaning of those experiences, with a strong emphasis on identity and on the relationship between researcher and participants. The “story” can come directly from interviews, but narrative data may also include observations and artifacts such as photos, arts, or written texts like diary entries. A key analytical challenge is identifying the right source information—data that can provide an in-depth, accurate view of how participants experience and interpret their lives.

Phenomenology also targets lived experience, but it shifts the unit of analysis from individuals to a group. The goal is to reduce individual differences and surface common, more universal themes in how people make sense of a phenomenon. The phenomenon can be concrete (insomnia) or more abstract (a happy relationship). Because the aim is shared meaning, phenomenology typically uses larger samples—often at least five participants, and frequently 10, 15, or even 20. Interviews are usually central, often using one or two broad, open-ended questions that prompt reflection on how and when the phenomenon is experienced. Two recurring challenges stand out: recruiting participants who have actually experienced the phenomenon, and engaging with the philosophical assumptions that phenomenology depends on.

Grounded theory aims to generate theory or a detailed explanation directly from the data. A defining feature is avoiding preconceived ideas and established frameworks—researchers work with a “blank mind” so that the emerging explanation stays grounded in what the data supports. This approach is often used when a phenomenon is under-researched, precisely because there may be little prior modeling to rely on. Although grounded theory includes specific procedures—such as theoretical sampling and particular coding and analysis practices—it is often misunderstood as overly complex; the main practical challenge is ensuring the study follows grounded theory procedures closely enough to meet the methodology’s expectations.

Ethnography studies people in their natural setting, traditionally associated with immersive study of indigenous tribes and remote communities, but now applied more broadly to cultural groups such as teachers within a school. The focus is on culture—shared values, beliefs, and social norms—rather than only individual perspectives. Observation is the core method, often paired with open-ended interviews. The work demands familiarity with cultural anthropology and social systems, and it can be time-intensive both in immersion and in reporting.

Case study research examines a detailed, in-depth view of a bounded system—ranging from one person to a school, institution, region, or even a whole country. Unlike ethnography’s broader cultural focus, case studies usually revolve around a specific research question or problem. Common challenges include defining what counts as the “case” or bounded system, and deciding between single-case versus multiple-case designs, which then affects how analysis must remain deep and accurate across cases.