手法を比較

	三角化研究日記（Triangulated Research Diary）	参与観察	研究ダイアリー
分野	調査方法論	質的研究	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)	1922	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)	Bronislaw Malinowski	Robert G. Burgess (systematic methodological treatment)
種類	Qualitative data collection technique	Method	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.	Geertz, C. (1973). The Interpretation of Cultures. Basic Books. ISBN: 978-0465026432	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	ethnographic observation, participatory observation, overt observation, immersive observation	researcher diary, field diary, research journal, reflexive diary
関連	6	4	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.	Participant observation is a qualitative research method in which the researcher embeds themselves within a community, organization, or social setting for an extended period, engaging in the activities and relationships of the group while systematically observing and documenting behavior, interactions, and cultural meaning. Pioneered by Malinowski in the 1920s and developed in anthropology, the method has been adopted across sociology, education, health sciences, and organizational research. The researcher functions as both insider (participating in group activities) and outsider (maintaining analytical distance), generating thick description—rich accounts of context, behavior, and meaning that reveal how people actually live and interact.	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.