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Similarity scaling often requires subjects to produce such a large number of judgments that fatigue may become a problem. Yet it remains unclear just how respondent fatigue affects similarity perceptions and resulting judgments. The present study uses a categorization perspective to examine the effects of fatigue on similarity judgments. The results suggest that subjects rely increasingly on category membership as they progress through a similarity judgment task.


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© Elsevier. Final version published as: Johnson, M. D., Lehmann, D. R., & Horne, D. R. (1990). The effects of fatigue on judgments of interproduct similarity. International Journal of Research in Marketing, 7(1), 35–43. doi:10.1016/0167-8116(90)90030-Q
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