Improving the Reliability of Autism Diagnoses: Examining the Utility of Adaptive Behavior

  • Stacey S. Tomanik
  • Deborah A. Pearson
  • Katherine A. Loveland
  • David M. Lane
  • J. Bryant Shaw
Original Paper

Abstract

The classification agreement of the Autism Diagnostic Interview-Revised (ADI-R) and the Autism Diagnostic Observation Schedule (ADOS) was examined in 129 children and adolescents (aged 7–18 years) who were evaluated for autism. Participants received a diagnosis of autism or non-autism based on the ADI-R. Linear discriminant analysis revealed adequate concordance between the ADI-R and ADOS, with 75% of the participants being correctly classified using the ADOS. Classification accuracy significantly improved to 84% when a measure of adaptive functioning (i.e., the Vineland Adaptive Behavior Scales) was included in the analysis. The findings suggest that when clinicians obtain discrepant information on the ADI-R and ADOS, assessment of an individual’s adaptive functioning may reduce diagnostic errors.

Keywords

Autism diagnosis Diagnostic reliability Autism spectrum disorders Autism Diagnostic Interview-Revised (ADI-R) Autism Diagnostic Observation Schedule (ADOS) Vineland Adaptive functioning 

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Copyright information

© Springer Science+Business Media, LLC 2006

Authors and Affiliations

  • Stacey S. Tomanik
    • 1
  • Deborah A. Pearson
    • 1
  • Katherine A. Loveland
    • 1
  • David M. Lane
    • 2
  • J. Bryant Shaw
    • 1
  1. 1.Department of Psychiatry and Behavioral SciencesUniversity of Texas Medical School at HoustonHoustonUSA
  2. 2.Department of PsychologyRice UniversityHoustonUSA

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