手法を比較

	会話分析	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 1960s–1974 (foundational lectures 1964–1972; landmark article 1974)	Systematised through Krippendorff's methodology work; 4th edition 2018
提唱者	Harvey Sacks, Emanuel Schegloff, and Gail Jefferson	Klaus Krippendorff (systematic formulation); roots in early 20th-century communications research
種類	Qualitative research method	Qualitative / mixed-method research technique
原典	Sacks, H., Schegloff, E. A., & Jefferson, G. (1974). A simplest systematics for the organization of turn-taking for conversation. Language, 50(4), 696–735.	Krippendorff, K. (2018). Content Analysis: An Introduction to Its Methodology (4th ed.). Sage. ISBN: 978-1506395661
別名	CA, talk-in-interaction, sequential analysis, interactional analysis	İçerik Analizi, systematic content coding, quantitative content analysis
関連	6	5
概要	Conversation Analysis (CA) is a qualitative research method that examines the fine-grained sequential structure of naturally occurring talk and social interaction. Developed by sociologists Harvey Sacks, Emanuel Schegloff, and Gail Jefferson in the 1960s and 1970s, CA investigates how participants in a conversation accomplish social actions — such as invitations, refusals, or diagnoses — through the precise moment-by-moment organisation of their talk, including turn-taking, sequence structure, repair, and recipient design.	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.