방법 비교

	Instrumental Case Study	사례 연구	근거 이론
분야	질적 방법	질적 방법	질적 연구
계열	Process / pipeline	Process / pipeline	Process / pipeline
기원 연도	1995	1984 (seminal codification)	1967
창시자	Robert E. Stake	Robert K. Yin (systematised in Case Study Research, 1984)	Barney Glaser and Anselm Strauss
유형	Qualitative research method	Qualitative research design	Method
원전	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	Glaser, B. G., & Strauss, A. L. (1967). The discovery of grounded theory: Strategies for qualitative research. Aldine.
별칭	instrumental case research, theory-building case study, illustrative case study, issue-driven case study	Vaka Çalışması (Case Study), case study design, case study methodology	GT, Grounded Theory Approach
관련	6	5	3
요약	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.	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.