เปรียบเทียบวิธี

	Rank-Order Elicitation	Triad Test
สาขาวิชา	Anthropology	Anthropology
ตระกูล	Process / pipeline	Process / pipeline
ปีกำเนิด	1988	1988
ผู้ริเริ่ม	Cognitive anthropology tradition (Weller & Romney)	Cognitive anthropology tradition (Weller & Romney; Borgatti)
ประเภท	Elicitation procedure for ordering items on a single criterion	Elicitation procedure for fine-grained perceived similarity
แหล่งต้นตำรับ	Weller, S. C., & Romney, A. K. (1988). Systematic Data Collection. Qualitative Research Methods Series 10. Newbury Park, CA: Sage. ISBN: 9780803930742	Weller, S. C., & Romney, A. K. (1988). Systematic Data Collection. Qualitative Research Methods Series 10. Newbury Park, CA: Sage. ISBN: 9780803930742
ชื่อเรียกอื่น	Ranking Task, Complete Ranking Elicitation, Ordinal Ranking Task, Rank Aggregation	Triadic Comparison, Triads Task, Method of Triads, Triad Sorting
ที่เกี่ยวข้อง	4	4
สรุป	Rank-order elicitation asks each informant to place a set of items into a complete order on a single criterion — from most to least important, severe, preferred, or typical — so that the whole domain is captured in one ordinal judgment per person. Unlike paired comparison, which gathers many local two-item choices, ranking obtains the global order directly, trading some redundancy for speed. Aggregating the individual rankings produces a group ordering, while a concordance statistic measures how strongly the informants agree.	The triad test is an elicitation technique for measuring perceived similarity among the items of a cultural domain. Informants are shown items three at a time and asked to pick the one that is most different (or, equivalently, which two are most alike). Across many triads and many informants, the pattern of which items are repeatedly kept together yields a fine-grained similarity matrix that is analyzed with multidimensional scaling and clustering.