手法を比較

	Multiple-Case Design-Based Research	比較事例研究
分野	フィールド調査法	質的手法
系統	Process / pipeline	Process / pipeline
提唱年	1992 (DBR); multiple-case variant codified through 2000s–2010s	1984 (Yin); 1995 (Stake)
提唱者	Ann Brown and Allan Collins (DBR origins); multiple-case extension developed by the DBR Collective and scholars such as Jan Herrington and Thomas Reeves	Robert K. Yin; Robert E. Stake
種類	Interventionist qualitative/mixed-methods design	Qualitative / mixed research design
原典	Brown, A. L. (1992). Design experiments: Theoretical and methodological challenges in creating complex interventions in classroom settings. Journal of the Learning Sciences, 2(2), 141–178.	Yin, R. K. (2018). Case Study Research and Applications: Design and Methods (6th ed.). Sage. ISBN: 978-1506336169
別名	multi-site DBR, multi-case design experiment, multiple-site design research, MCDBR	cross-case study, multi-site case study, multiple case study design, comparative case analysis
関連	5	4
概要	Multiple-case design-based research (MCDBR) is an interventionist methodology drawn from the learning sciences and education research. It extends single-site design-based research by implementing and iteratively refining an educational intervention across two or more distinct sites, contexts, or participant groups simultaneously or sequentially. The cross-case structure strengthens theoretical transferability and exposes context-dependent variations that a single site could never reveal.	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.