Verbal prowess equals higher IQ: Implications for evaluating autism

Daniel T. Lennen, Gordon D. Lamb, Benjamin J. Dunagan, Trevor Hall

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

This study evaluated the clinical utility of the Stanford-Binet-5 (SB-5) in assessing individuals suspected of having an autism spectrum disorder (ASD). Comparisons were made between individuals with and without autism (AD), with or without comorbid mental retardation. Differences in score profiles were discovered based on AD and mental retardation (MR) status. Score differences were then evaluated using VIQ as a covariate. Findings suggested that verbal ability has a large influence on scores, even within the nonverbal subtests. Discriminant analysis revealed that SB-5 scores could predict group membership with 52.9% accuracy among the four groups, and with 82.6% accuracy when determining between MR and MR with AD.

Original languageEnglish (US)
Pages (from-to)95-101
Number of pages7
JournalResearch in Autism Spectrum Disorders
Volume4
Issue number1
DOIs
StatePublished - Jan 2010
Externally publishedYes

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Autistic Disorder
Intellectual Disability
Aptitude
Discriminant Analysis

Keywords

  • Autism
  • Differential diagnosis
  • Nonverbal IQ
  • Stanford-Binet

ASJC Scopus subject areas

  • Psychiatry and Mental health
  • Clinical Psychology
  • Developmental and Educational Psychology

Cite this

Verbal prowess equals higher IQ : Implications for evaluating autism. / Lennen, Daniel T.; Lamb, Gordon D.; Dunagan, Benjamin J.; Hall, Trevor.

In: Research in Autism Spectrum Disorders, Vol. 4, No. 1, 01.2010, p. 95-101.

Research output: Contribution to journalArticle

Lennen, Daniel T. ; Lamb, Gordon D. ; Dunagan, Benjamin J. ; Hall, Trevor. / Verbal prowess equals higher IQ : Implications for evaluating autism. In: Research in Autism Spectrum Disorders. 2010 ; Vol. 4, No. 1. pp. 95-101.
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