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	Etnografia podłużna	Badanie typu studium przypadku (case study research)	Teoria Ugruntowana
Dziedzina	Metody jakościowe	Metody jakościowe	Badania jakościowe
Rodzina	Process / pipeline	Process / pipeline	Process / pipeline
Rok powstania	1920s (classical origins); refined 1990s–2000s	1984 (seminal codification)	1967
Twórca	Rooted in classical anthropological fieldwork (Malinowski, 1922); systematised for sociological revisits by Michael Burawoy (2003)	Robert K. Yin (systematised in Case Study Research, 1984)	Barney Glaser and Anselm Strauss
Typ	Qualitative research design	Qualitative research design	Method
Źródło pierwotne	Burawoy, M. (2003). Revisits: An outline of a theory of reflexive ethnography. American Sociological Review, 68(5), 645–679.	Yin, R.K. (2018). Case Study Research and Applications: Design and Methods (6th ed.). Sage. ISBN: 978-1506336169	Glaser, B. G., & Strauss, A. L. (1967). The discovery of grounded theory: Strategies for qualitative research. Aldine.
Inne nazwy	extended ethnography, long-term fieldwork, sustained ethnographic study, longitudinal field research	Vaka Çalışması (Case Study), case study design, case study methodology	GT, Grounded Theory Approach
Pokrewne	5	5	3
Podsumowanie	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.	Case study research is a qualitative research design that investigates a specific phenomenon, individual, group, organisation, or event in depth within its real-world context. Systematised by Robert K. Yin in 1984, it supports single-case and multiple-case designs and draws on multiple data sources — interviews, observation, documents, and artefacts — to build a rich, contextualised account of a bounded unit.	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.