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Comparative Scaling of Unidimensional Discrimination and Similarity Data

Published online by Cambridge University Press:  01 January 2025

Gordon G. Bechtel
Gordon G. Bechtel*
Affiliation:
Oregon Research Institute Eugene, Oregon
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Abstract

Scales constructed from paired-comparison designs under Thurstone's Case V model are discussed in relation to those derived from similarity data by means of the Unilateral Law of Comparative Judgment [3]. Factors inherent in the triadic similarity task are then considered with respect to scale invariance across experimental designs. Illustrative data, although revealing the influence of these factors upon similarity response consistency, indicate the similarity scale to be somewhat robust to their biasing effects.

Type
Original Paper
Information
Psychometrika , Volume 31 , Issue 1 , March 1966 , pp. 75 - 84
Copyright
Copyright © 1966 Psychometric Society

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Footnotes

*

This research was supported in part by National Institute of Mental Health Grant MH-04439-05.

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