Do individuals with high functioning autism have the IQ profile associated with nonverbal learning disability?
DOI
10.1016/j.rasd.2007.08.005
Document Type
Journal Article
Publication Date
1-1-2008
Publication Title
Research in Autism Spectrum Disorders
Volume
2
Issue
2
First Page
353
Last Page
361
ISSN
17509467
Keywords
Asperger syndrome, Autism, Nonverbal learning disability, Wechsler intelligence scales
Abstract
Previously researchers have noted a high level of occurrence of the IQ profile associated with nonverbal learning disability (NLD) in Asperger syndrome (ASP) but not in high functioning autism (HFA). We examined the IQ profile scores of a large sample of children (n = 69) and adults (n = 77) with HFA, stringently diagnosed according to ADOS, ADI-R, and DSM-IV criteria, and a corresponding sample of typical child (n = 72) and adult controls (n = 107). At least one of the three primary components of the Wechsler pattern seen in NLD were found in 17-26% of the children and 20-32% of the adults with HFA. All three components occurred in slightly more than 5% of the children and adults with autism. Overall, the VIQ > PIQ profile seen in NLD occurred in 18% of the sample of individuals stringently diagnosed with HFA. Therefore, obtaining this IQ profile is not a valid clinical discriminator between NLD and HFA. © 2007 Elsevier Ltd. All rights reserved.
Open Access
Green Accepted
Preprint
Repository Citation
Williams, D., Goldstein, G., Kojkowski, N., & Minshew, N. (2008). Do individuals with high functioning autism have the IQ profile associated with nonverbal learning disability?. Research in Autism Spectrum Disorders, 2 (2), 353-361. https://doi.org/10.1016/j.rasd.2007.08.005