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Michael A. Levine; Huan Chen; Ericka L. Wodka; Brian S. Caffo; Joshua B. Ewen – Journal of Autism and Developmental Disorders, 2025
Background: The Wechsler Intelligence Scale for Children (WISC) employs a hierarchical model of general intelligence in which index scores separate out different clinically-relevant aspects of intelligence; the test is designed such that index scores are statistically independent from one another within the normative sample. Whether or not the…
Descriptors: Autism Spectrum Disorders, Intelligence, Vertical Organization, Models
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Prigge, Molly B. D.; Bigler, Erin D.; Lange, Nicholas; Morgan, Jubel; Froehlich, Alyson; Freeman, Abigail; Kellett, Kristina; Kane, Karen L.; King, Carolyn K.; Taylor, June; Dean, Douglas C., III; King, Jace B.; Anderson, Jeff S.; Zielinski, Brandon A.; Alexander, Andrew L.; Lainhart, Janet E. – Journal of Autism and Developmental Disorders, 2022
Intelligence (IQ) scores are used in educational and vocational planning for individuals with autism spectrum disorder (ASD) yet little is known about the stability of IQ throughout development. We examined longitudinal age-related IQ stability in 119 individuals with ASD (3-36 years of age at first visit) and 128 typically developing controls.…
Descriptors: Autism Spectrum Disorders, Intelligence, Cognitive Development, Scores
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Mayes, Susan Dickerson; Calhoun, Susan L. – Journal of Autism and Developmental Disorders, 2008
Children with high-functioning autism earned above normal scores on the Wechsler Intelligence Scale for Children-Fourth Edition (WISC-IV) Perceptual Reasoning and Verbal Comprehension Indexes and below normal scores on the Working Memory and Processing Speed Indexes and Wechsler Individual Achievement Test-Second Edition (WIAT-II) Written…
Descriptors: Intelligence, Autism, Achievement Tests, Measures (Individuals)
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Ozonoff, Sally; Strayer, David L. – Journal of Autism and Developmental Disorders, 2001
This study compared working memory in 28 high-functioning autistic individuals (ages 7-18) with that of 30 individuals with Tourette Syndrome or typically developing. No group differences were found. Performance was significantly correlated only with age and IQ. Results suggest that working memory is not an executive function seriously impaired in…
Descriptors: Adolescents, Age Differences, Autism, Children