手法を比較

	コンテンツ分析	質的コンテンツ分析
分野	質的手法	質的研究
系統	Process / pipeline	Process / pipeline
提唱年	Systematised through Krippendorff's methodology work; 4th edition 2018	1980
提唱者	Klaus Krippendorff (systematic formulation); roots in early 20th-century communications research	Klaus Krippendorff; refined by Margrit Schreier
種類	Qualitative / mixed-method research technique	Method
原典	Krippendorff, K. (2018). Content Analysis: An Introduction to Its Methodology (4th ed.). Sage. ISBN: 978-1506395661	Krippendorff, K. (1980). Content analysis: An introduction to its methodology. Sage Publications.
別名	İçerik Analizi, systematic content coding, quantitative content analysis	Content Analysis, Categorical Content Analysis
関連	5	2
概要	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.	Qualitative Content Analysis (QCA) is a systematic, inductive method for analyzing textual or visual data by identifying and categorizing meaning units into content categories. Developed and formalized by Klaus Krippendorff (1980), QCA can be purely qualitative (inductive, exploratory) or combined with quantitative counting; it analyzes manifest content (explicit, surface meanings) and latent content (underlying, interpretive meanings).