เปรียบเทียบวิธี

	การสัมภาษณ์เชิงโครงสร้างแบบสามเส้า	การสัมภาษณ์แบบมีโครงสร้าง
สาขาวิชา	ระเบียบวิธีสำรวจ	ระเบียบวิธีสำรวจ
ตระกูล	Process / pipeline	Process / pipeline
ปีกำเนิด	1978 (Denzin's triangulation framework); structured interviews in use from early 20th century	1940s–1950s
ผู้ริเริ่ม	Norman K. Denzin (triangulation framework); structured interview tradition predates	Survey research tradition; formalized by Campbell, Katona, and Kahn in mid-20th century
ประเภท	Triangulated quantitative/qualitative data collection technique	Quantitative / mixed data collection technique
แหล่งต้นตำรับ	Denzin, N. K. (1978). The Research Act: A Theoretical Introduction to Sociological Methods (2nd ed.). McGraw-Hill.	Fontana, A., & Frey, J. H. (2000). The interview: From structured questions to negotiated text. In N. K. Denzin & Y. S. Lincoln (Eds.), Handbook of Qualitative Research (2nd ed., pp. 645–672). Sage.
ชื่อเรียกอื่น	triangulated standardized interview, multi-source structured interview, cross-validated structured interview	standardized interview, formal interview, schedule-based interview, fixed-format interview
ที่เกี่ยวข้อง	3	4
สรุป	A triangulated structured interview applies the triangulation principle — using multiple independent sources, methods, or perspectives to cross-validate findings — to the structured interview format. The researcher administers the same fixed set of questions across different respondent groups, time points, or complementary data sources, then systematically compares the results to confirm, qualify, or explain discrepancies. This strengthens confidence in the accuracy of the data beyond what any single structured interview session could provide.	A structured interview is a data collection technique in which every participant is asked exactly the same pre-specified questions in the same order, using standardized wording. Because the interview schedule is fixed, responses across participants are directly comparable, enabling quantitative aggregation and statistical analysis. It sits at the most standardized end of the interview continuum, between the self-administered questionnaire and the semi-structured interview.