So sánh phương pháp

	Quan sát không tham gia được tam giác hóa	Ghi chép thực địa tam giác hóa
Lĩnh vực	Phương pháp luận khảo sát	Phương pháp luận khảo sát
Họ	Process / pipeline	Process / pipeline
Năm ra đời	1958 (observer roles); 1978 (triangulation applied to observation)	1970s–1980s
Người khởi xướng	Norman K. Denzin (triangulation framework); Raymond Gold (observer roles taxonomy)	Norman K. Denzin (triangulation); Yvonna Lincoln & Egon Guba (trustworthiness framework)
Loại	Qualitative data collection technique	Qualitative data collection and verification technique
Công trình gốc	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.
Tên gọi khác	triangulated observation, multi-source non-participant observation, observational triangulation, observer triangulation	multi-source field notes, cross-observer field notes, triangulated observation notes, TFN
Liên quan	3	5
Tóm tắt	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.