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Updated: Mar 26, 2026

A Psychophysics Paradigm for the Collection and Analysis of Similarity Judgments
Published on: March 1, 2022
BRIEF REPORT: THE EFFECT OF AGGREGATION ON NONMETRIC MULTIDIMENSIONAL SCALING SOLUTIONS
Abstract:
J A nonmetric multidimensional scaling analysis was done on similarities between 12 objects on data gathered from 42 subjects. First, each subject's data were used to produce a separate configuration. Then, data were aggregated over all subjects land a single solution Configuration was abtained. Comparisons between the tWO approaches were made. Generally, it was found that aggregation did not produce a configuration which differed greatly from those obtained by analyzing each subjeot's codiguration separately. However, the aggregate stress figures consistently indicated a far better fit than did the corresponding individual stress values.
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