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Autism and Hierarchical Models of Intelligence
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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
Longitudinal Stability of Intellectual Functioning in Autism Spectrum Disorder: From Age 3 through Mid-Adulthood
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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
Comparing the Executive Function Ability of Autistic and Non-Autistic Adolescents with a Manualised Battery of Neuropsychological Tasks
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Kenny, Lorcan; Remington, Anna; Pellicano, Elizabeth – Journal of Autism and Developmental Disorders, 2022
Performance on a single executive function (EF) task (e.g., a card sorting task) is often taken to represent ability on the underlying subcomponent of EF (e.g., set shifting) without accounting for the non-specific and non-executive skills employed to complete the task. This study used a manualised battery of EF tasks to derive individual task…
Descriptors: Executive Function, Cognitive Ability, Autism, Pervasive Developmental Disorders
Brief Report: Effect of Spatial Complexity on Visual Short-Term Memory and Self-Reported Autistic-Like Traits in Typically Developed Individuals
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Takahashi, Junichi; Gyoba, Jiro; Yamawaki, Nozomi – Journal of Autism and Developmental Disorders, 2013
This report examines effects of the spatial complexity of configurations on visual short-term memory (VSTM) capacity for individuals from the general population differing on autism-spectrum quotient (AQ) scores. During each trial, nine-line segments with various orientations were arrayed in simple or complex configurations and presented in both…
Descriptors: Spatial Ability, Short Term Memory, Pervasive Developmental Disorders, Autism
WISC-IV and WIAT-II Profiles in Children with High-Functioning Autism
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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)