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KMID : 1159120200270040151
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Korean Journal of Rehabilitation Psychology
2020 Volume.27 No. 4 p.151 ~ p.163
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Meta-analysis of Gender Difference in Performance on the Information Subtest of the Korean-Wechsler Intelligence Scale
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Kim Hong-Keun
Kim Yong-Suk
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Abstract
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Foreign studies have repeatedly showed that males are superior to females on the Information subtest of Wechsler Intelligence Scale. The aim of this study was to investigate the sex difference in Korean men and women, using a meta-analytic approach. The meta-analysis involved 7 individual studies that reported sex difference in performance on the Information subtest. Collectively, these studies involved 4,344 participants (male 2,120, female, 2,224). The results showed that Korean men were significantly superior to Korean women on the Information subtest. Analyses of age effects showed that the sex difference was absent in preschool children, modest in size in children, and moderate in size in adults. Analyses of educational effects indicated that although the sex difference was attributable partially to greater years of education for men than for women, the larger part of it was unrelated to sex difference in education level. We suggest that the male superiority is related primarily to the fact that the information subtest consists mainly of items on history, geography, nature, and science, and males have more knowledge of these domains than females do. Gender difference in knowledge of these domains may stem from sex differences in both socio-structural roles and evolutionary-adapted behavior. We suggest that clinicians should take into account the sex bias in the Information subtest when evaluating intelligence and future construction of this subtest needs to balance between male- and female-superior knowledge domains.
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KEYWORD
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General Knowledge, Korean Wechsler Intelligence Scale, Sex Difference, Meta-analysis
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