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Updated: Jul 11, 2026

A Psychophysics Paradigm for the Collection and Analysis of Similarity Judgments
Published on: March 1, 2022
Assessing dissimilarity relations under missing data conditions: evidence from computer simulations
Natalie J Allen1, David J Stanley, Helen Williams
1Department of Psychology, University of Western Ontario, London, Canada. nallen@uwo.ca
Abstract:
The extensive research examining relations between group member dissimilarity and outcome measures has yielded inconsistent results. In the present research, the authors used computer simulations to examine the impact that a methodological feature of such research, participant nonresponse, can have on dissimilarity-outcome relations. Results suggest that using only survey responders to calculate dissimilarity typically results in underestimation of true dissimilarity effects and that these effects can occur even when response rates are high.
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