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    • Alternative Explanations for Changes in Similarity Judgments and MDS Structure 

      Johnson, Michael D.; Lehmann, Donald R.; Horne, David A. (1990-08-01)
      [Excerpt] The basic purpose of our paper (Johnson et al., 1990) was to see if the repetitive task of providing similarity judgments affects the cognitive structure evidenced by those judgments. The data clearly indicate ...
    • The Effects of Fatigue on Judgments of Interproduct Similarity 

      Johnson, Michael D.; Lehmann, Donald R.; Horne, David A. (1990-08-01)
      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 ...