ERIC Number: EJ748480
Record Type: Journal
Publication Date: 2006-Apr
Reference Count: N/A
WISC-R Subtest but No Overall VIQ-PIQ Difference in Dutch Children with PDD-NOS
de Bruin, Esther I.; Verheij, Fop; Ferdinand, Robert F.
Journal of Abnormal Child Psychology, v34 n2 p254-262 Apr 2006
VIQ-PIQ differences have been studied in children with autism and Asperger syndrome but have not been studied in a separate group of children with PDD-NO, although, PDD-NOS has a much higher prevalence rate than autism and deficits in communication and social interaction are severe. The Wechsler Intelligence Scale for Children-Revised (WISC-R) was administered to 100 children, aged 6-12 years, with PDD-NOS (n = 76), autism (n = 13), and Asperger syndrome (n = 11). PDD-NOS was diagnosed using explicit research criteria. No overall differences between VIQ and PIQ were found in PDD-NOS and autism. Peaks in the subtest scores on Information, Similarities, Picture Arrangement, and Mazes, and troughs in the subtest scores on Comprehension, Digit Span, and Coding were demonstrated in children with PDD-NOS. Their score on the Freedom from Distractibility factor was lower than the scores on the Verbal Comprehension factor and the Perceptual Organization factor. Children with PDD-NOS seemed to have a similar VIQ-PIQ profile as children with autism, and on the subtest level children with PDD-NOS showed some similarities to children with Asperger syndrome or autism. It was not possible to distinguish PDD-NOS from autism or Asperger syndrome by using IQ scores.
Descriptors: Autism, Asperger Syndrome, Communication Disorders, Interpersonal Relationship, Tests, Scores, Intelligence Tests, Children, Incidence, Measures (Individuals), Clinical Diagnosis, Intelligence Quotient, Foreign Countries
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Authoring Institution: N/A
Identifiers - Location: Netherlands
Identifiers - Assessments and Surveys: Wechsler Intelligence Scale for Children