手法を比較

	フィールドベースの文書分析	コンテンツ分析	エスノグラフィー
分野	質的手法	質的手法	質的手法
系統	Process / pipeline	Process / pipeline	Process / pipeline
提唱年	1970s–1980s (codified in qualitative research methodology)	Systematised through Krippendorff's methodology work; 4th edition 2018	c. 1922 (Malinowski's Argonauts of the Western Pacific)
提唱者	Rooted in ethnographic fieldwork traditions; systematised in qualitative education research by Bogdan & Biklen and Hammersley & Atkinson	Klaus Krippendorff (systematic formulation); roots in early 20th-century communications research	Bronisław Malinowski (modern ethnography); rooted in 19th-century anthropology
種類	Qualitative research strategy	Qualitative / mixed-method research technique	Qualitative fieldwork tradition
原典	Bogdan, R. C., & Biklen, S. K. (2007). Qualitative Research for Education: An Introduction to Theories and Methods (5th ed.). Pearson. ISBN: 978-0205483655	Krippendorff, K. (2018). Content Analysis: An Introduction to Its Methodology (4th ed.). Sage. ISBN: 978-1506395661	Hammersley, M. & Atkinson, P. (2019). Ethnography: Principles in Practice (4th ed.). Routledge. ISBN: 978-1138504462
別名	FBDA, field document analysis, naturalistic document analysis, ethnographic document analysis	İçerik Analizi, systematic content coding, quantitative content analysis	Etnografi, participant observation, fieldwork, ethnographic research
関連	6	5	5
概要	Field-based document analysis is a qualitative strategy in which the researcher enters a real-world setting — a school, clinic, organisation, or community — and systematically collects, authenticates, and analyses documents that are naturally produced and used there. Unlike library-based or archival document analysis, the field context is integral: the researcher observes how documents function in practice, who produces and reads them, and what organisational or cultural work they perform. The approach is widely used in ethnographic, case-study, and institutional research.	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.	Ethnography is a qualitative research tradition in which a researcher immerses themselves in a social group or community over an extended period — typically three to six months or longer — to study its culture, values, and behaviours in their natural setting. Originating in social and cultural anthropology, and consolidated as a rigorous method by Bronisław Malinowski in the early twentieth century, ethnography produces rich, contextualised accounts of how people live, work, and make meaning together.