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12-10-2014 | Perception In Autism

Does WISC-IV Underestimate the Intelligence of Autistic Children?

Auteurs: Anne-Marie Nader, Valérie Courchesne, Michelle Dawson, Isabelle Soulières

Gepubliceerd in: Journal of Autism and Developmental Disorders | Uitgave 5/2016

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Abstract

Wechsler Intelligence Scale for Children (WISC) is widely used to estimate autistic intelligence (Joseph in The neuropsychology of autism. Oxford University Press, Oxford, 2011; Goldstein et al. in Assessment of autism spectrum disorders. Guilford Press, New York, 2008; Mottron in J Autism Dev Disord 34(1):19–27, 2004). However, previous studies suggest that while WISC-III and Raven’s Progressive Matrices (RPM) provide similar estimates of non-autistic intelligence, autistic children perform significantly better on RPM (Dawson et al. in Psychol Sci 18(8):657–662, doi:10.​1111/​j.​1467-9280.​2007.​01954.​x, 2007). The latest WISC version introduces substantial changes in subtests and index scores; thus, we asked whether WISC-IV still underestimates autistic intelligence. Twenty-five autistic and 22 typical children completed WISC-IV and RPM. Autistic children’s RPM scores were significantly higher than their WISC-IV FSIQ, but there was no significant difference in typical children. Further, autistic children showed a distinctively uneven WISC-IV index profile, with a “peak” in the new Perceptual Reasoning Index. In spite of major changes, WISC-IV FSIQ continues to underestimate autistic intelligence.
Voetnoten
1
To reduce unhelpful biases, we use “autistic” and similar accurate, respectful terminology. See, e.g., Sinclair (1999).
 
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Metagegevens
Titel
Does WISC-IV Underestimate the Intelligence of Autistic Children?
Auteurs
Anne-Marie Nader
Valérie Courchesne
Michelle Dawson
Isabelle Soulières
Publicatiedatum
12-10-2014
Uitgeverij
Springer US
Gepubliceerd in
Journal of Autism and Developmental Disorders / Uitgave 5/2016
Print ISSN: 0162-3257
Elektronisch ISSN: 1573-3432
DOI
https://doi.org/10.1007/s10803-014-2270-z

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