手法を比較

	批判的談話分析	コンテンツ分析
分野	質的手法	質的手法
系統	Process / pipeline	Process / pipeline
提唱年	Late 1970s–1990s (systematised ~1979–1995)	Systematised through Krippendorff's methodology work; 4th edition 2018
提唱者	Norman Fairclough; Teun A. van Dijk; Ruth Wodak	Klaus Krippendorff (systematic formulation); roots in early 20th-century communications research
種類	Qualitative research method	Qualitative / mixed-method research technique
原典	Fairclough, N. (1992). Discourse and Social Change. Polity Press.	Krippendorff, K. (2018). Content Analysis: An Introduction to Its Methodology (4th ed.). Sage. ISBN: 978-1506395661
別名	CDA, Critical Linguistics, Discourse-Historical Approach, Dialectical-Relational Analysis	İçerik Analizi, systematic content coding, quantitative content analysis
関連	6	5
概要	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.	Content analysis is a systematic research technique for reducing text, visual, or media material into coded categories so that patterns can be counted, compared, and interpreted. Formalised by Klaus Krippendorff in his widely cited methodology textbook (latest edition 2018), the method sits at the boundary of qualitative and quantitative inquiry: it imposes structured, replicable coding on inherently meaning-laden material.