مقایسهٔ روش‌ها

	مصاحبه عمیق	قوم‌نگاری	پژوهش گروه کانونی	نظریه داده‌بنیاد
حوزه	کیفی	کیفی	کیفی	پژوهش کیفی
خانواده	Process / pipeline	Process / pipeline	Process / pipeline	Process / pipeline
سال پیدایش	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
پدیدآور	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	Barney Glaser and Anselm Strauss
نوع	Qualitative research method	Qualitative fieldwork tradition	Qualitative data collection method	Method
منبع بنیادین	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	Glaser, B. G., & Strauss, A. L. (1967). The discovery of grounded theory: Strategies for qualitative research. Aldine.
نام‌های دیگر	IDI, semi-structured interview, unstructured interview, qualitative interview	Etnografi, participant observation, fieldwork, ethnographic research	focus group discussion, FGD, group interview, Odak Grup Araştırması	GT, Grounded Theory Approach
مرتبط	6	5	6	3
خلاصه	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.	Grounded Theory (GT) is a systematic qualitative research methodology in which theory emerges directly from data through iterative analysis, rather than being imposed before data collection. Developed by Barney Glaser and Anselm Strauss in 1967, GT prioritizes generating explanatory frameworks grounded in evidence.