Evidence for latent classes of IQ in young children with autism spectrum disorder

Jeffrey Munson; Geraldine Dawson; Lindsey Sterling; Theodore Beauchaine; Andrew Zhou; Elizabeth Koehler; Catherine Lord; Sally J Rogers; Marian Sigman; Annette Estes; Robert Abbott

doi:10.1352/2008.113:439-452

Evidence for latent classes of IQ in young children with autism spectrum disorder

Jeffrey Munson, Geraldine Dawson, Lindsey Sterling, Theodore Beauchaine, Andrew Zhou, Elizabeth Koehler, Catherine Lord, Sally J Rogers, Marian Sigman, Annette Estes, Robert Abbott

Psychiatry and Behavioral Sciences

Research output: Contribution to journal › Article

88 Scopus citations

Abstract

Autism is currently viewed as a spectrum condition that includes strikingly different severity levels; IQ is consistently described as one of the primary aspects of the heterogeneity in autism. To investigate the possibility of more than one distinct subtype of autism based on IQ, both latent class analysis and taxometrics methods were used to classify Mullen IQs in a sample of 456 children with autism spectrum disorder. We found evidence for multiple IQ-based subgroups using both methods. Groups differed in level of intellectual functioning and patterns of verbal versus nonverbal ability. Results support the notion of distinct subtypes of autism that differ in severity of intellectual ability, patterns of cognitive strengths and weaknesses, and severity of autism symptoms.

Original language	English (US)
Pages (from-to)	439-452
Number of pages	14
Journal	American Journal on Mental Retardation
Volume	113
Issue number	6
DOIs	https://doi.org/10.1352/2008.113:439-452
State	Published - Nov 2008

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ASJC Scopus subject areas

Rehabilitation
Developmental and Educational Psychology

Cite this

Munson, J., Dawson, G., Sterling, L., Beauchaine, T., Zhou, A., Koehler, E., Lord, C., Rogers, S. J., Sigman, M., Estes, A., & Abbott, R. (2008). Evidence for latent classes of IQ in young children with autism spectrum disorder. American Journal on Mental Retardation, 113(6), 439-452. https://doi.org/10.1352/2008.113:439-452

Evidence for latent classes of IQ in young children with autism spectrum disorder. / Munson, Jeffrey; Dawson, Geraldine; Sterling, Lindsey; Beauchaine, Theodore; Zhou, Andrew; Koehler, Elizabeth; Lord, Catherine; Rogers, Sally J; Sigman, Marian; Estes, Annette; Abbott, Robert.

In: American Journal on Mental Retardation, Vol. 113, No. 6, 11.2008, p. 439-452.

Research output: Contribution to journal › Article

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10.1352/2008.113:439-452