เปรียบเทียบวิธี

	บันทึกภาคสนามแบบสามเส้า	การวิจัยแบบผสมผสาน
สาขาวิชา	ระเบียบวิธีสำรวจ	เชิงคุณภาพ
ตระกูล	Process / pipeline	Process / pipeline
ปีกำเนิด	1970s–1980s	—
ผู้ริเริ่ม	Norman K. Denzin (triangulation); Yvonna Lincoln & Egon Guba (trustworthiness framework)	—
ประเภท	Qualitative data collection and verification technique	Research design framework
แหล่งต้นตำรับ	Denzin, N. K. (1978). The Research Act: A Theoretical Introduction to Sociological Methods (2nd ed.). McGraw-Hill.	Creswell, J.W. & Plano Clark, V.L. (2018). Designing and Conducting Mixed Methods Research (3rd ed.). Sage. ISBN: 978-1483344379
ชื่อเรียกอื่น	multi-source field notes, cross-observer field notes, triangulated observation notes, TFN	Karma Yöntem Araştırması (Mixed Methods), multi-method research, triangulation design
ที่เกี่ยวข้อง	5	4
สรุป	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.	Mixed methods research is a systematic research design in which quantitative and qualitative data are collected and analysed within a single study. Formalised by Creswell and Plano Clark (2003, 3rd ed. 2018), it offers three principal design variants — concurrent, sequential, and transformative — and strengthens findings through triangulation across both data strands.