পদ্ধতির তুলনা করুন

	তুলনামূলক কেস স্টাডি	একাধিক-কেস স্টাডি
ক্ষেত্র	গুণগত	গুণগত
পরিবার	Process / pipeline	Process / pipeline
উদ্ভবের বছর	1984 (Yin); 1995 (Stake)	1980s–1990s (Yin's first edition 1984; Stake's collective case study concept 1995)
প্রবর্তক	Robert K. Yin; Robert E. Stake	Robert K. Yin (systematic replication logic); Robert E. Stake (naturalistic/collective case tradition)
ধরন	Qualitative / mixed research design	Qualitative research method
মৌলিক উৎস	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
অপর নাম	cross-case study, multi-site case study, multiple case study design, comparative case analysis	comparative case study, multi-site case study, collective case study, cross-case analysis
সম্পর্কিত	4	6
সারসংক্ষেপ	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.	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.