手法を比較

	フィールドベースの内容分析	文書分析
分野	質的手法	質的研究
系統	Process / pipeline	Process / pipeline
提唱年	1987	1920
提唱者	David L. Altheide	Max Weber and Karl Mannheim
種類	Qualitative analytic approach	Method
原典	Altheide, D. L. (1987). Ethnographic content analysis. Qualitative Sociology, 10(1), 65–77.	Scott, J. (1990). A Matter of Record: Documentary Sources in Social Research. Polity Press. ISBN: 978-0745608419
別名	field content analysis, naturalistic content analysis, ethnographic content analysis, ECA	documentary analysis, textual analysis, content analysis of documents, archival research
関連	6	4
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.	Document analysis is a systematic qualitative research method for examining written, visual, or audiovisual sources—such as policy documents, historical records, organizational records, media reports, emails, social media posts, photographs, or videos—to extract meaning, identify patterns, and understand social phenomena. Developed by Weber and Mannheim in early 20th-century sociology, the method bridges historical research, content analysis, and textual interpretation. Document analysis is used across disciplines to understand organizational change, policy evolution, media representation, historical events, and cultural meaning. Documents provide evidence of what organizations, institutions, or societies value, decide, and communicate, often revealing contradictions between policy and practice.