手法を比較

	Interpretive Conversation Analysis	批判的談話分析
分野	質的手法	質的手法
系統	Process / pipeline	Process / pipeline
提唱年	1960s–1970s (CA); interpretive strand formalised 1990s–2000s	Late 1970s–1990s (systematised ~1979–1995)
提唱者	Harvey Sacks, Emanuel Schegloff, Gail Jefferson (CA foundations); interpretive extension by discourse scholars including Margaret Wetherell	Norman Fairclough; Teun A. van Dijk; Ruth Wodak
種類	Qualitative discourse research design	Qualitative research method
原典	ten Have, P. (2007). Doing Conversation Analysis: A Practical Guide (2nd ed.). Sage. ISBN: 978-1412922271	Fairclough, N. (1992). Discourse and Social Change. Polity Press.
別名	ICA, interpretive CA, hermeneutic conversation analysis, qualitative conversation analysis	CDA, Critical Linguistics, Discourse-Historical Approach, Dialectical-Relational Analysis
関連	6	6
概要	Interpretive conversation analysis (ICA) examines how meaning is co-constructed turn by turn in talk, combining the micro-sequential rigour of classic conversation analysis with an explicitly interpretive stance. Rather than treating sequential organisation as the sole analytic object, ICA asks what participants are doing socially and discursively through their turns — what identities, institutional agendas, and power relations are built and contested in interaction. It draws on naturally occurring or recorded talk from social, institutional, or interview settings.	Critical Discourse Analysis (CDA) is a qualitative method that examines how language in texts and talk constructs, sustains, and challenges relations of power, ideology, and social inequality. Drawing on linguistics, social theory, and critical philosophy, CDA treats discourse not merely as communication but as social practice — a site where dominance is reproduced and where resistance can be articulated. Developed in the late twentieth century by Norman Fairclough, Teun van Dijk, and Ruth Wodak, among others, CDA is applied to political speeches, media texts, policy documents, educational materials, and institutional interactions.