Title page for ETD etd-04102009-012625

Type of Document Master's Thesis
Author Dolan, Whitney Nicole
Author's Email Address wdolan1@tigers.lsu.edu, wdolan1@gmail.com
URN etd-04102009-012625
Title Using the Autism Diagnostic Observation Schedule (ADOS) to Discriminate between Children with Autism and Children with Language Impairments without Autism
Degree Master of Arts (M.A.)
Department Communication Sciences & Disorders
Advisory Committee
Advisor Name Title
Janna B. Oetting Committee Chair
Janet A. Norris Committee Member
Paul R. Hoffman Committee Member
  • children with language impairments
  • Autism Spectrum Disorders
Date of Defense 2009-04-01
Availability unrestricted
The purpose of this study was to learn about the diagnostic accuracy of Module 1 of the ADOS-G. Specifically, this study was designed to determine how well the ADOS-G differentiates children with autism from children with language impairments without autism. Data for this study were obtained from 10 children who were recruited from speech, language and hearing clinics in the metropolitan area of Baton Rouge, Louisiana. Visual inspection and statistical analyses indicated that the means of the ADOS-G scores for all domains (Communication, Social Interaction, and Communication + Social Interaction Score) were higher for the autism group than for the non-autism group. The ADOS-G also yielded high sensitivity but low specificity values for correctly classifying the participantsí clinical diagnoses. Visual inspection of individual items revealed that for four items in the Communication domain and three items in the Social Interaction domain, 50% or more of the participants with and without autism earned similar scores. Overall, this study suggests that the ADOS-G is able to differentiate between groups of children with autism and children with language impairment without autism; however, at the level of the individual, it has a tendency to over classify children as presenting with autism or ASD.
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