Módszerek összehasonlítása

	Instrumentális esettanulmány	Esettanulmány-kutatás
Tudományterület	Kvalitatív módszerek	Kvalitatív módszerek
Módszercsalád	Process / pipeline	Process / pipeline
Keletkezés éve	1995	1984 (seminal codification)
Megalkotó	Robert E. Stake	Robert K. Yin (systematised in Case Study Research, 1984)
Típus	Qualitative research method	Qualitative research design
Alapmű	Stake, R. E. (1995). The Art of Case Study Research. Sage Publications. ISBN: 978-0803957671	Yin, R.K. (2018). Case Study Research and Applications: Design and Methods (6th ed.). Sage. ISBN: 978-1506336169
Alternatív nevek	instrumental case research, theory-building case study, illustrative case study, issue-driven case study	Vaka Çalışması (Case Study), case study design, case study methodology
Kapcsolódó	6	5
Összefoglaló	Instrumental case study is a qualitative research design, formalised by Robert E. Stake (1995), in which a specific case is studied primarily to gain insight into an external issue or theoretical question — not because the case itself is intrinsically important. The case serves as an instrument for understanding something broader: a policy problem, a theoretical proposition, or a generalised phenomenon. One or several cases are selected because they are expected to illuminate the issue particularly well, and the researcher moves fluidly between the case and the issue throughout the study.	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.