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	Osservazione non partecipante triangolata	Appunti sul campo triangolati
Campo	Metodologia delle indagini	Metodologia delle indagini
Famiglia	Process / pipeline	Process / pipeline
Anno di origine	1958 (observer roles); 1978 (triangulation applied to observation)	1970s–1980s
Ideatore	Norman K. Denzin (triangulation framework); Raymond Gold (observer roles taxonomy)	Norman K. Denzin (triangulation); Yvonna Lincoln & Egon Guba (trustworthiness framework)
Tipo	Qualitative data collection technique	Qualitative data collection and verification technique
Fonte seminale	Denzin, N. K. (1978). The Research Act: A Theoretical Introduction to Sociological Methods (2nd ed.). McGraw-Hill.	Denzin, N. K. (1978). The Research Act: A Theoretical Introduction to Sociological Methods (2nd ed.). McGraw-Hill.
Alias	triangulated observation, multi-source non-participant observation, observational triangulation, observer triangulation	multi-source field notes, cross-observer field notes, triangulated observation notes, TFN
Correlati	3	5
Sintesi	Triangulated non-participant observation systematically combines two or more independent non-participant observation streams — using multiple observers, different time points, or distinct vantage points — to cross-validate field records of naturally occurring behaviour. The researcher remains outside the setting as a detached observer, and triangulation across sources reduces single-observer bias while strengthening the credibility of descriptive findings.	Triangulated Field Notes is a qualitative data collection technique in which field notes are recorded independently by multiple observers, from multiple vantage points, or at multiple time points and then systematically compared to strengthen the credibility and completeness of observational data. Rooted in Denzin's triangulation framework and Lincoln and Guba's trustworthiness criteria, the approach counters observer bias by cross-checking accounts before analysis begins.