手法を比較

	比較内容分析	比較テーマ分析
分野	質的手法	質的手法
系統	Process / pipeline	Process / pipeline
提唱年	1952 (Berelson); comparative application developed through 1970s–2000s	2000s–2010s (as an explicit comparative variant of thematic analysis)
提唱者	Bernard Berelson (foundational content analysis); Klaus Krippendorff (systematic methodology)	Virginia Braun & Victoria Clarke (thematic analysis foundation); comparative extension developed in applied policy and cross-cultural qualitative research traditions
種類	Qualitative and/or quantitative comparative research design	Qualitative comparative analytical strategy
原典	Krippendorff, K. (2018). Content Analysis: An Introduction to Its Methodology (4th ed.). Sage. ISBN: 978-1506395661	Braun, V., & Clarke, V. (2006). Using thematic analysis in psychology. Qualitative Research in Psychology, 3(2), 77–101.
別名	cross-case content analysis, comparative textual analysis, CCA, comparative message analysis	cross-group thematic analysis, comparative TA, multi-group thematic analysis, comparative qualitative thematic analysis
関連	5	6
概要	Comparative Content Analysis applies a shared coding framework to texts, documents, or media artifacts drawn from two or more groups, contexts, time points, or nations in order to identify similarities, differences, and patterns across those units of comparison. By holding the analytical lens constant while varying the comparison unit, it reveals how meaning, framing, or discourse differs across the cases under study.	Comparative Thematic Analysis applies the structured procedures of thematic analysis across two or more distinct groups, sites, or time points, with the explicit aim of identifying both shared patterns and meaningful differences. Rather than producing a single composite account of experience, it yields a layered analysis that maps where themes converge and diverge across comparison units — making it especially valuable for policy-relevant, cross-cultural, or multi-site qualitative studies.