ERIC Number: EJ1096628
Record Type: Journal
Publication Date: 2016-May
Abstractor: As Provided
Does WISC-IV Underestimate the Intelligence of Autistic Children?
Nader, Anne-Marie; Courchesne, Valérie; Dawson, Michelle; Soulières, Isabelle
Journal of Autism and Developmental Disorders, v46 n5 p1582-1589 May 2016
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.
Descriptors: Children, Autism, Pervasive Developmental Disorders, Comparative Analysis, Scores, Intelligence Tests, Test Construction
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Authoring Institution: N/A
Identifiers - Assessments and Surveys: Raven Progressive Matrices; Wechsler Intelligence Scale for Children
Grant or Contract Numbers: N/A