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Estimation of the Intelligence Quotient Using Wechsler Intelligence Scales in Children and Adolescents with Asperger Syndrome

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Abstract

Asperger syndrome (AS) patients show heterogeneous intelligence profiles and the validity of short forms for estimating intelligence has rarely been studied in this population. We analyzed the validity of Wechsler Intelligence Scale (WIS) short forms for estimating full-scale intelligence quotient (FSIQ) and assessing intelligence profiles in 29 AS patients. Only the Information and Block Design dyad meets the study criteria. No statistically significant differences were found between dyad scores and FSIQ scores (t(28) = 1.757; p = 0.09). The dyad has a high correlation with FSIQ, good percentage of variance explained (R 2 = 0.591; p < 0.001), and high consistency with the FSIQ classification (χ 2(36) = 45.202; p = 0.14). Short forms with good predictive accuracy may not be accurate in clinical groups with atypical cognitive profiles such as AS patients.

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Acknowledgments

Supported in part by the Spanish Ministry of Science and Innovation, Instituto de Salud Carlos III, CIBERSAM, and grants: PI04/0457 and “Estudio longitudinal del estado oxidativo de dos trastornos del neurodesarrollo temprano: esquizofrenia y síndrome de Asperger” (Fundación Alicia Koplowitz).

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  1. Child and Adolescent Psychiatry Department, Hospital General Universitario Gregorio Marañón, Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, Madrid, Spain

    Jessica Merchán-Naranjo, María Mayoral, Marta Rapado-Castro, Cloe Llorente, Leticia Boada, Celso Arango & Mara Parellada

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  1. Jessica Merchán-Naranjo
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  2. María Mayoral
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Correspondence to Jessica Merchán-Naranjo.

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Merchán-Naranjo, J., Mayoral, M., Rapado-Castro, M. et al. Estimation of the Intelligence Quotient Using Wechsler Intelligence Scales in Children and Adolescents with Asperger Syndrome. J Autism Dev Disord 42, 116–122 (2012). https://doi.org/10.1007/s10803-011-1219-8

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