เปรียบเทียบวิธี

	การศึกษาหลายกรณี	การศึกษาเปรียบเทียบกรณีศึกษา
สาขาวิชา	เชิงคุณภาพ	เชิงคุณภาพ
ตระกูล	Process / pipeline	Process / pipeline
ปีกำเนิด	1984 (Yin); 2006 (Stake's collective case study formalization)	1984 (Yin); 1995 (Stake)
ผู้ริเริ่ม	Robert K. Yin; Robert E. Stake (parallel traditions)	Robert K. Yin; Robert E. Stake
ประเภท	Qualitative research design	Qualitative / mixed research design
แหล่งต้นตำรับ	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
ชื่อเรียกอื่น	multiple-case design, collective case study, multi-site case study, multi-case study	cross-case study, multi-site case study, multiple case study design, comparative case analysis
ที่เกี่ยวข้อง	5	4
สรุป	A multiple case study (also called a multiple-case design or collective case study) is a qualitative research design in which two or more bounded cases are examined together to pursue a common research question. By studying several instances of a phenomenon in parallel, the researcher can compare patterns, identify convergences and divergences, and build more robust, transferable conclusions than a single case could support. The design draws principally from Robert Yin's case-study methodology and Robert Stake's collective case study tradition.	Comparative case study is a qualitative research design in which two or more bounded cases are studied in depth and then systematically compared to identify similarities, differences, and patterns across contexts. Rooted in Yin's replication logic and Stake's multiple case framework, it is particularly suited to questions that ask how or why a phenomenon unfolds differently — or similarly — across distinct settings, populations, or time periods.