The Japanese Journal of Personality
Online ISSN : 1349-6174
Print ISSN : 1348-8406
ISSN-L : 1348-8406
Self-concepts in Japanese and American Elementary School Children: Psychometric Analysis of the Self-Description Questionnaire I (SDQ-I)
Hiroko I. Tomioka
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2011 Volume 19 Issue 3 Pages 191-205


The Self-Description Questionnaire (SDQ-I) was administered to 1049 Japanese and 308 US elementary school children in 3rd through 5th grade in order to examine its reliability and validity. A multiple-group confirmatory factor analysis showed that the SDQ had an eight-factor structure across the Japanese and American samples. The SDQ had adequate internal consistency and reliability. In both countries, males showed higher levels of self-concept in Physical Ability and Math, whereas females showed higher levels of self-concept in Reading. There was a tendency for the level of self-concept to decline with age in the Japanese sample, but there were no significant age differences in the American sample. The American sample showed significantly higher levels of self-concept for all eight factors than the Japanese sample. The differences of self-concepts between the two countries were discussed from the perspective of cultural psychology. Several advantages of using the SDQ in school settings and for research were proposed.

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© 2011 by Japan Society of Personality Psychology
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