เปรียบเทียบวิธี

	การสัมภาษณ์เชิงลึกแบบกึ่งโครงสร้างแบบสามเส้า	การวิเคราะห์แก่นสาระ
สาขาวิชา	ระเบียบวิธีสำรวจ	การวิจัยเชิงคุณภาพ
ตระกูล	Process / pipeline	Process / pipeline
ปีกำเนิด	Formalized in practice from the late 1970s onward	2006
ผู้ริเริ่ม	Synthesized from Norman K. Denzin (triangulation) and H. Russell Bernard (semi-structured interviewing)	Virginia Braun and Victoria Clarke
ประเภท	Qualitative data collection technique	Method
แหล่งต้นตำรับ	Denzin, N. K. (1978). The Research Act: A Theoretical Introduction to Sociological Methods (2nd ed.). McGraw-Hill.	Braun, V., & Clarke, V. (2006). Using thematic analysis in psychology. Qualitative Research in Psychology, 3(2), 77–101.
ชื่อเรียกอื่น	triangulated qualitative interview, multi-source semi-structured interview, triangulated in-depth interview, convergent interview strategy	TA, Reflexive Thematic Analysis
ที่เกี่ยวข้อง	3	3
สรุป	A triangulated semi-structured interview strategy combines the flexibility of open-ended, guided interviewing with deliberate triangulation across multiple informant groups, data sources, or interview occasions. By applying the same semi-structured protocol to different participant perspectives — such as clients, providers, and managers — or by pairing interviews with documents and observations, the approach cross-validates emerging themes and reduces the risk that any single viewpoint dominates the findings. The result is richer, more credible qualitative data than a single-source interview study can deliver.	Thematic Analysis (TA) is a qualitative research methodology for identifying, analyzing, and reporting patterns (themes) in qualitative data. Developed systematically by Virginia Braun and Victoria Clarke (2006), TA is flexible and accessible, applicable across diverse theoretical frameworks and data types, making it one of the most widely used qualitative methods in psychology, health research, and social sciences.