Sex Differences in WISC-III Profiles of Children with High-functioning Pervasive Developmental Disorders
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Using the Japanese version of the Wechsler Intelligence Scale for Children-Third Edition (WISC-III), 26 girls with high-functioning (IQ ≥ 70) pervasive developmental disorders (HFPDD) (mean age, 8.2 years) were compared with 116 boys with HFPDD (mean age, 9.0 years). Compared with the boys, the girls scored significantly higher on the Processing Speed index, Coding, and Symbol Search, but scored significantly lower on Block Design. Although both groups showed weakness on Comprehension in the verbal domain, the girls’ subtest profile in the performance domain was relatively even and significantly different from the boys’, which was characterized by a peak on Block Design. Such differences should be replicated, and possible behavioral, neurological, and genetic links to these sex differences should be clarified.
KeywordsCognitive function High-functioning Pervasive developmental disorders (PDD) Sex differences Wechsler Intelligence Scale for Children-Third Edition (WISC-III)
This study was supported in part by a Research Grant from the Japanese Ministry of Health, Labour and Welfare, and by the Research Institute of Science and Technology for Society, Japan Science and Technology Agency. We would like to thank Ms. Yoko Hayashi, Ms. Keiko Shimoyamada, Mr. Hiromi Ishida, Mr. Junichi Yukimoto, Ms. Tomoko Nakano, and Ms. Mika Tobari for their help with data collection.
- American Psychiatric Association. (1994). Diagnostic and statistical manual of mental disorders (4th ed.). Washington, DC: Author.Google Scholar
- Beebe, D. W., Pfiffner, L. J., & McBurnett, K. (2000). Evaluation of the validity of the Wechsler intelligence scale for children-third edition: Comprehension and picture arrangement subtests as measures of social intelligence. Psychological Assessment, 12, 97–101. doi: 10.1037/1040-35220.127.116.11.PubMedCrossRefGoogle Scholar
- Ehlers, S., Nyden, A., Gillberg, C., Sandberg, A. D., Dahlgren, S. O., Hjelmquist, E., et al. (1997). Asperger syndrome, autism and attention disorders: A comparative study of the cognitive profiles of 120 children. Journal of Child Psychology and Psychiatry and Allied Disciplines, 38, 207–217. doi: 10.1111/j.1469-7610.1997.tb01855.x.CrossRefGoogle Scholar
- Japanese WISC-III Publication Committee. (1998). Nihonban WISC-III chinou kensahou (Japanese Wechsler Intelligence Scale for Children, 3rd ed.). Tokyo: Nihon Bunka Kagakusha.Google Scholar
- Koyama, T., Tachimori, H., Osada, H., & Kurita, H. (2006). Cognitive and symptom profiles in high-functioning pervasive developmental disorder not otherwise specified and attention-deficit/hyperactivity disorder. Journal of Autism and Developmental Disorders, 36, 373–380. doi: 10.1007/s10803-006-0075-4.PubMedCrossRefGoogle Scholar
- Lord, C., Rutter, M., & Le Couteur, A. (1994). Autism diagnostic interview-revised: A revised version of a diagnostic interview for caregivers of individuals with possible pervasive developmental disorders. Journal of Autism and Developmental Disorders, 24, 659–685. doi: 10.1007/BF02172145.PubMedCrossRefGoogle Scholar
- Moss, J., Magiati, I., Charman, T., & Howlin, P. (2008). Stability of the autism diagnostic interview-revised from pre-school to elementary school age in children with autism spectrum disorders. Journal of Autism and Developmental Disorders, 38, 1081–1091. doi: 10.1007/s10803-007-0487-9.PubMedCrossRefGoogle Scholar
- Perry, A., Condillac, R. A., Freeman, N. L., Dunn-Geier, J., & Belair, J. (2005). Multi-site study of the childhood autism rating scale (CARS) in five clinical groups of young children. Journal of Autism and Developmental Disorders, 35, 625–634. doi: 10.1007/s10803-005-0006-9.PubMedCrossRefGoogle Scholar
- Pilowsky, T., Yirmiya, N., Shulman, C., & Dover, R. (1998). The autism diagnostic interview-revised and the childhood autism rating scale: Differences between diagnostic systems and comparison between genders. Journal of Autism and Developmental Disorders, 28, 143–151. doi: 10.1023/A:1026092632466.PubMedCrossRefGoogle Scholar
- Wechsler, D. (1991). Wechsler intelligence scale for children third edition manual. New York: The Psychological Corporation.Google Scholar
- World Health Organization. (1993). The ICD-10 classification of mental and behavioural disorders: Diagnostic criteria for research. Geneva: Author.Google Scholar