手法を比較

	比較談話分析	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	1980s–1990s (established as comparative practice through the 1990s)	Late 1970s–1990s (systematised ~1979–1995)
提唱者	Norman Fairclough; Ruth Wodak; Teun A. van Dijk	Norman Fairclough; Teun A. van Dijk; Ruth Wodak
種類	Qualitative comparative research approach	Qualitative research method
原典	Fairclough, N. (1995). Critical Discourse Analysis: The Critical Study of Language. Longman. ISBN: 978-0582219526	Fairclough, N. (1992). Discourse and Social Change. Polity Press.
別名	CDA comparative, cross-context discourse analysis, comparative text analysis, multi-site discourse analysis	CDA, Critical Linguistics, Discourse-Historical Approach, Dialectical-Relational Analysis
関連	5	6
概要	Comparative discourse analysis examines how language constructs meaning, identity, and power by systematically contrasting texts or speech acts drawn from at least two distinct contexts, groups, time periods, or institutions. By holding analytical categories constant across cases, it reveals how discursive patterns diverge or converge, producing insights that single-context discourse analysis cannot generate.	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.