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Understanding sex/gender differences in intelligence profiles of children with Autism: A comprehensive WISC
David Giofrè1, Rachele Lievore2, Katie Allen3
1Disfor, University of Genoa, Italy.
Background:
Intelligence assessment in children with autism spectrum disorders (ASD) often sparks debates about sex/gender differences. Specifically, the question arises whether girls exhibit lower performance on intelligence scales compared to boys. This meta-analysis examines nine studies (N=1105; 809 boys and 296 girls) to quantify sex/gender differences on the Wechsler Intelligence Scale for Children (WISC) in children with ASD, comparing their results to typically developing children.
Method And Procedures:
Random-effects meta-analyses on WISC indices and subtests were conducted to address the heterogeneity across effect sizes. Results for children with ASD were compared to those of typically developing children.
Outcomes And Results:
Findings revealed no significant differences in general intellectual functioning (full-scale IQ), verbal comprehension, working memory, or processing speed between boys and girls in children with ASD. Boys showed an advantage only in the perceptual reasoning index. At the subtest level, boys outperformed on certain tasks, while girls excelled in others.
Conclusions And Implications:
The observed pattern of differences in the ASD population aligns quantitatively with those in typically developing populations. Differences, if present, are specific to certain indices rather than general intelligence. These insights contribute to a nuanced understanding of gender-related cognitive variations in the context of ASD.
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