手法を比較

	詳細インタビュー	エスノグラフィー	フォーカスグループリサーチ	ナラティブ分析
分野	質的手法	質的手法	質的手法	質的手法
系統	Process / pipeline	Process / pipeline	Process / pipeline	Process / pipeline
提唱年	Mid-20th century (formalised in qualitative social research from the 1950s onward)	c. 1922 (Malinowski's Argonauts of the Western Pacific)	1940s (sociological origin); modern applied form from the 1980s–1990s	1967 (foundational); 2008 (canonical handbook)
提唱者	Rooted in sociological interviewing traditions; systematised by researchers including Steinar Kvale and Herbert J. Rubin	Bronisław Malinowski (modern ethnography); rooted in 19th-century anthropology	Robert K. Merton (sociological precursor, 1940s); popularised in applied research by Richard A. Krueger	Catherine Kohler Riessman (seminal synthesis, 2008); roots in Labov & Waletzky (1967)
種類	Qualitative research method	Qualitative fieldwork tradition	Qualitative data collection method	Qualitative interpretive method
原典	Kvale, S. (1996). InterViews: An Introduction to Qualitative Research Interviewing. Sage. ISBN: 978-0803958203	Hammersley, M. & Atkinson, P. (2019). Ethnography: Principles in Practice (4th ed.). Routledge. ISBN: 978-1138504462	Krueger, R.A. & Casey, M.A. (2014). Focus Groups: A Practical Guide for Applied Research (5th ed.). Sage. ISBN: 978-1483365244	Riessman, C.K. (2008). Narrative Methods for the Human Sciences. Sage.
別名	IDI, semi-structured interview, unstructured interview, qualitative interview	Etnografi, participant observation, fieldwork, ethnographic research	focus group discussion, FGD, group interview, Odak Grup Araştırması	narrative inquiry, life history analysis, biographical research, Anlatı Analizi (Narrative Analysis)
関連	6	5	6	6
概要	The in-depth interview is a one-to-one qualitative data-collection method in which a researcher engages a participant in an extended, open-ended conversation to elicit rich, detailed accounts of experiences, perceptions, beliefs, or meanings. Unlike structured surveys, the interview guide serves as a flexible road map rather than a fixed script, allowing the researcher to probe unexpected directions as they emerge. The approach is foundational to qualitative inquiry and is used directly as a primary method or as the data-collection arm of phenomenology, grounded theory, narrative analysis, and other frameworks.	Ethnography is a qualitative research tradition in which a researcher immerses themselves in a social group or community over an extended period — typically three to six months or longer — to study its culture, values, and behaviours in their natural setting. Originating in social and cultural anthropology, and consolidated as a rigorous method by Bronisław Malinowski in the early twentieth century, ethnography produces rich, contextualised accounts of how people live, work, and make meaning together.	Focus group research is a qualitative data-collection method in which a trained moderator guides structured discussions with homogeneous groups of six to ten participants to explore ideas, attitudes, and perceptions on a defined topic. Developed from sociological roots in the 1940s and systematised for applied research by Krueger and Casey, the method leverages group interaction as a data source — revealing not just what people think, but how they negotiate and articulate views in a social setting.	Narrative analysis is a qualitative research method, synthesised canonically by Catherine Kohler Riessman (2008), that examines how individuals storise their lived experiences and construct meaning through the telling. Drawing on life history, biographical, and narrative inquiry traditions, it treats the story itself — not just its content — as the unit of analysis, attending to temporal sequence, plot structure, and the social context in which a narrative is produced.