So sánh phương pháp

	Étude de cas critique	Lý thuyết Nền tảng
Lĩnh vực	Định tính	Nghiên cứu định tính
Họ	Process / pipeline	Process / pipeline
Năm ra đời	1980s–2006 (formalized)	1967
Người khởi xướng	Bent Flyvbjerg (formalized); Robert K. Yin (case study typology)	Barney Glaser and Anselm Strauss
Loại	Qualitative research design	Method
Công trình gốc	Flyvbjerg, B. (2006). Five misunderstandings about case-study research. Qualitative Inquiry, 12(2), 219–245.	Glaser, B. G., & Strauss, A. L. (1967). The discovery of grounded theory: Strategies for qualitative research. Aldine.
Tên gọi khác	critical case, strategic case study, critical-instance case study, paradigmatic case study	GT, Grounded Theory Approach
Liên quan	6	3
Tóm tắt	A critical case study is a case study design in which the researcher deliberately selects a case that is strategically important for testing, confirming, challenging, or extending an existing proposition, theory, or policy claim. Rather than choosing a typical or representative case, the researcher argues that if the finding holds here — in this most-likely, least-likely, or paradigmatic instance — it can reasonably be expected to hold more broadly. This purposive logic transforms a single case into a powerful analytical tool.	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.