Department of Educational Psychology, Faculty of Education, Toyama University
Volume 26 (1984) Issue 2 Pages 57-67
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The purpose of this study was to propose a slightly modified concept of stratum factor structure, which would explain ground for atypical EPA structure in Iwashita (1972). One hundred and eighty-five students rated six musical pieces on 54 semantic differencial (SD) scales consisted of 49 used in Iwashita and five typical ones, added especially for this study. Two analyses were carried out. The first analysis showed a sufficient EPA structure for our purpose, however it disclosed two typical scales irrelevant to the EPA dimensions. Two-levels of hierarchical structure were distinguished in the second analysis: The basic structure consisted of warmth and intelligence factors, and the affective structure consisted of mood, activity, familiarity, and complexity (P) factors. According to these results, it was concluded that carefully chosen stimuli and typical scales were necessary to resume typical EPA structure. It was also concluded that 3-levels hierarchical structure were able to explain the atypical EPA structure in SD research.