手法を比較

	フィールドベースの内容分析	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	1987	Systematised through Krippendorff's methodology work; 4th edition 2018
提唱者	David L. Altheide	Klaus Krippendorff (systematic formulation); roots in early 20th-century communications research
種類	Qualitative analytic approach	Qualitative / mixed-method research technique
原典	Altheide, D. L. (1987). Ethnographic content analysis. Qualitative Sociology, 10(1), 65–77.	Krippendorff, K. (2018). Content Analysis: An Introduction to Its Methodology (4th ed.). Sage. ISBN: 978-1506395661
別名	field content analysis, naturalistic content analysis, ethnographic content analysis, ECA	İçerik Analizi, systematic content coding, quantitative content analysis
関連	6	5
概要	Field-based content analysis is a qualitative analytic approach that systematically examines documents, artifacts, and texts encountered or produced within a natural field setting. Originally formulated by David Altheide as ethnographic content analysis (ECA), it blends the systematic rigor of traditional content analysis with the reflexive, iterative logic of ethnographic inquiry, allowing the researcher to interact continuously with the data and revise analytic categories as new meaning emerges from the field.	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.