مقایسهٔ روش‌ها

	قوم‌نگاری طولی	قوم‌نگاری	نظریه داده‌بنیاد
حوزه	کیفی	کیفی	پژوهش کیفی
خانواده	Process / pipeline	Process / pipeline	Process / pipeline
سال پیدایش	1920s (classical origins); refined 1990s–2000s	c. 1922 (Malinowski's Argonauts of the Western Pacific)	1967
پدیدآور	Rooted in classical anthropological fieldwork (Malinowski, 1922); systematised for sociological revisits by Michael Burawoy (2003)	Bronisław Malinowski (modern ethnography); rooted in 19th-century anthropology	Barney Glaser and Anselm Strauss
نوع	Qualitative research design	Qualitative fieldwork tradition	Method
منبع بنیادین	Burawoy, M. (2003). Revisits: An outline of a theory of reflexive ethnography. American Sociological Review, 68(5), 645–679.	Hammersley, M. & Atkinson, P. (2019). Ethnography: Principles in Practice (4th ed.). Routledge. ISBN: 978-1138504462	Glaser, B. G., & Strauss, A. L. (1967). The discovery of grounded theory: Strategies for qualitative research. Aldine.
نام‌های دیگر	extended ethnography, long-term fieldwork, sustained ethnographic study, longitudinal field research	Etnografi, participant observation, fieldwork, ethnographic research	GT, Grounded Theory Approach
مرتبط	5	5	3
خلاصه	Longitudinal ethnography is a qualitative research design in which a researcher conducts sustained, repeated fieldwork with the same community, organisation, or group across an extended period — months to decades. By returning to the field at multiple time points, the researcher captures how social processes, meanings, and structures evolve, making it the only qualitative method capable of directly observing change and continuity in lived experience.	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.	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.