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	Studium wielu przypadków	Badanie typu studium przypadku (case study research)
Dziedzina	Metody jakościowe	Metody jakościowe
Rodzina	Process / pipeline	Process / pipeline
Rok powstania	1980s–1990s (Yin's first edition 1984; Stake's collective case study concept 1995)	1984 (seminal codification)
Twórca	Robert K. Yin (systematic replication logic); Robert E. Stake (naturalistic/collective case tradition)	Robert K. Yin (systematised in Case Study Research, 1984)
Typ	Qualitative research method	Qualitative research design
Źródło pierwotne	Yin, R. K. (2018). Case Study Research and Applications: Design and Methods (6th ed.). Sage. ISBN: 978-1506336169	Yin, R.K. (2018). Case Study Research and Applications: Design and Methods (6th ed.). Sage. ISBN: 978-1506336169
Inne nazwy	comparative case study, multi-site case study, collective case study, cross-case analysis	Vaka Çalışması (Case Study), case study design, case study methodology
Pokrewne	6	5
Podsumowanie	Multiple-case study design investigates two or more bounded real-world cases using the same research protocol, then compares findings across cases to identify patterns, contrasts, and explanatory insights that a single case could not produce. Developed primarily through Robert Yin's replication logic and Robert Stake's collective case tradition, the approach is particularly powerful when a researcher needs to determine whether a phenomenon occurs under varied conditions or to test an emerging theoretical explanation against rival contexts.	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.