手法を比較

	アクションリサーチ	談話分析	エスノグラフィー
分野	質的研究	質的研究	質的手法
系統	Process / pipeline	Process / pipeline	Process / pipeline
提唱年	1946	1989 (Fairclough); 1987 (Potter & Wetherell)	c. 1922 (Malinowski's Argonauts of the Western Pacific)
提唱者	Kurt Lewin; expanded by Kemmis, McTaggart, Reason & Bradbury	Norman Fairclough; Jonathan Potter and Margaret Wetherell	Bronisław Malinowski (modern ethnography); rooted in 19th-century anthropology
種類	Method	Method	Qualitative fieldwork tradition
原典	Lewin, K. (1946). Action research and minority problems. Journal of Social Issues, 2(4), 34–46.	Fairclough, N. (1989). Language and power. Longman.	Hammersley, M. & Atkinson, P. (2019). Ethnography: Principles in Practice (4th ed.). Routledge. ISBN: 978-1138504462
別名	Participatory Action Research, PAR, Collaborative Inquiry	DA, Critical Discourse Analysis, Discursive Analysis	Etnografi, participant observation, fieldwork, ethnographic research
関連	1	2	5
概要	Action research is a collaborative research methodology in which researchers work with practitioners and community members to investigate a problem, implement change, and evaluate outcomes, cycling through reflection, action, and learning. Developed by Kurt Lewin (1946), action research bridges research and practice, aiming simultaneously to produce knowledge and practical improvement.	Discourse analysis is a qualitative research methodology that examines how language, communication, and power shape meaning, identity, and social reality. Developed across linguistics, sociology, and psychology (particularly by Norman Fairclough and Jonathan Potter), discourse analysis goes beyond content to analyze language use as a social practice that constitutes and reflects power relations, ideologies, and social structures.	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.