手法を比較

	ダイアリー法	エスノグラフィー	フィールドノート――質的研究における観察記録
分野	調査方法論	質的手法	調査方法論
系統	Process / pipeline	Process / pipeline	Process / pipeline
提唱年	1920s–1940s (systematised by Allport, 1942)	c. 1922 (Malinowski's Argonauts of the Western Pacific)	Late 19th century (formalized in 20th century)
提唱者	Gordon Allport (systematic social-science use); Nels Anderson (early fieldwork diaries)	Bronisław Malinowski (modern ethnography); rooted in 19th-century anthropology	Rooted in 19th-century anthropology and sociology; systematized by ethnographers such as Bronislaw Malinowski and later Robert Emerson et al.
種類	Qualitative / mixed-methods data-collection technique	Qualitative fieldwork tradition	Qualitative data collection and recording technique
原典	Alaszewski, A. (2006). Using Diaries for Social Research. Sage. ISBN: 978-0761941415	Hammersley, M. & Atkinson, P. (2019). Ethnography: Principles in Practice (4th ed.). Routledge. ISBN: 978-1138504462	Emerson, R. M., Fretz, R. I., & Shaw, L. L. (1995). Writing Ethnographic Fieldnotes. University of Chicago Press. ISBN: 978-0226206813
別名	diary study, diary technique, self-report diary, daily diary method	Etnografi, participant observation, fieldwork, ethnographic research	fieldnotes, observational notes, ethnographic notes, jottings
関連	5	5	6
概要	The diary method is a data-collection technique in which participants record their thoughts, behaviours, events, or experiences in their own words at regular or event-contingent intervals over a defined study period. By capturing data close in time to the event, diaries reduce retrospective recall bias and give researchers access to the texture of everyday life as it unfolds — something one-off surveys and retrospective interviews cannot provide.	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.	Field notes are detailed written records created by researchers during or immediately after direct observation in a naturalistic setting. They capture what is seen, heard, and experienced — including behaviors, interactions, physical environments, and the researcher's own analytic impressions — forming the primary data source for ethnographic and observational studies.