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	三角化研究日記（Triangulated Research Diary）	フィールドノート――質的研究における観察記録	研究ダイアリー
分野	調査方法論	調査方法論	調査方法論
系統	Process / pipeline	Process / pipeline	Process / pipeline
提唱年	1970s–1980s (triangulation formalized by Denzin 1978; diary methodology developed through 1980s)	Late 19th century (formalized in 20th century)	1981 (methodological codification); diary use in research dates to 19th-century anthropology
提唱者	Norman K. Denzin (triangulation framework); Mary Louise Holly (research diary practice)	Rooted in 19th-century anthropology and sociology; systematized by ethnographers such as Bronislaw Malinowski and later Robert Emerson et al.	Robert G. Burgess (systematic methodological treatment)
種類	Qualitative data collection technique	Qualitative data collection and recording technique	Qualitative data collection and reflexivity tool
原典	Denzin, N. K. (1978). The Research Act: A Theoretical Introduction to Sociological Methods (2nd ed.). McGraw-Hill.	Emerson, R. M., Fretz, R. I., & Shaw, L. L. (1995). Writing Ethnographic Fieldnotes. University of Chicago Press. ISBN: 978-0226206813	Burgess, R. G. (1981). Keeping a research diary. Cambridge Journal of Education, 11(1), 75–83.
別名	reflective diary triangulation, multi-method research journal, triangulated reflexive diary, diary-based triangulation	fieldnotes, observational notes, ethnographic notes, jottings	researcher diary, field diary, research journal, reflexive diary
関連	6	6	6
概要	A Triangulated Research Diary is a qualitative data collection approach in which a researcher's ongoing reflective diary is used as one strand within a triangulated data collection strategy. The diary records observations, decisions, emotions, and emerging interpretations across the study, while at least one other data source — such as interviews, documents, or observations — is collected in parallel. Cross-checking diary entries against other sources increases the credibility and depth of the findings.	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.	A research diary is a systematic, dated log maintained by the researcher throughout a study to record methodological decisions, emergent observations, analytical hunches, and reflections on researcher positionality. Unlike a participant diary, it is authored by the researcher and functions simultaneously as a data source, an audit trail, and a reflexivity instrument.