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An Individual Difference Model for the Multidimensional Analysis of Preference Data

Published online by Cambridge University Press:  01 January 2025

Peter H. Schönemann
Affiliation:
Purdue University
Ming Mei Wang
Affiliation:
Purdue University

Abstract

A model for the analysis of paired comparison data is presented which combines features of the BTL-model with features of the Unfolding model. The model is metric, mathematically tractable, and has an exact algebraic solution. Since it is multidimensional and allows for individual differences, it is thought to be more realistic for some choice situations than either the Thurstone model or the BTL-model. No claim is made that the present model will be appropriate for all conceivable choice situations. Rather, it is argued that the fact that it is explicitly falsifiable is a point in its favor.

Type
Original Paper
Copyright
Copyright © 1972 The Psychometric Society

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Footnotes

*

This work was supported by a grant of the United States Public Health Service (1 R03 MH19139 01 MSM) and a David Ross (XR) grant of the Purdue Research Foundation (PRF 2132), both of which are gratefully acknowledged. We also owe thanks to Dr. Terry Cooper, whose careful scrutiny of an earlier draft of this paper allowed us to reduce the number of errors from n to n-1.

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