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A Meta-Analysis of Differences in IQ Profiles Between Individuals with Asperger’s Disorder and High-Functioning Autism

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Abstract

A meta-analysis was performed to examine differences in IQ profiles between individuals with Asperger’s disorder (AspD) and high-functioning autism (HFA). Fifty-two studies were included for this study. The results showed that (a) individuals with AspD had significantly higher full-scale IQ, verbal IQ (VIQ), and performance IQ (PIQ) than did individuals with HFA; (b) individuals with AspD had significantly higher VIQ than PIQ; and (c) VIQ was similar to PIQ in individuals with HFA. These findings seem to suggest that AspD and HFA are two different subtypes of Autism. The implications of the present findings to DSM-5 Autism Spectrum Disorder are discussed.

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  1. Department of Health and Behavior Studies, Teachers College, Columbia University, New York, NY, USA

    Hsu-Min Chiang & Alice Brown

  2. University of Michigan Medical School, Ann Arbor, MI, USA

    Luke Y. Tsai

  3. Department of Biostatistics, School of Public Health, Columbia University, New York, NY, USA

    Ying Kuen Cheung

  4. Measurement, Evaluation, and Statistics Program, Department of Human Development, Teachers College, Columbia University, New York, NY, USA

    Huacheng Li

  5. Intellectual Disability/Autism Program, Teachers College, Columbia University, 525 West 120th St, Box 223, New York, NY, 10027, USA

    Hsu-Min Chiang

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Chiang, HM., Tsai, L.Y., Cheung, Y.K. et al. A Meta-Analysis of Differences in IQ Profiles Between Individuals with Asperger’s Disorder and High-Functioning Autism. J Autism Dev Disord 44, 1577–1596 (2014). https://doi.org/10.1007/s10803-013-2025-2

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