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    Diagnosing autism in a clinical sample of adults with intellectual disabilities: How useful are the ADOS and the ADI-R?

    Access Status
    Fulltext not available
    Authors
    Sappok, T.
    Diefenbacher, A.
    Budczies, J.
    Schade, C.
    Grubich, C.
    Bergmann, T.
    Bölte, Sven
    Dziobek, I.
    Date
    2013
    Type
    Journal Article
    
    Metadata
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    Citation
    Sappok, T. and Diefenbacher, A. and Budczies, J. and Schade, C. and Grubich, C. and Bergmann, T. and Bölte, S. et al. 2013. Diagnosing autism in a clinical sample of adults with intellectual disabilities: How useful are the ADOS and the ADI-R?. Research in Developmental Disabilities. 34 (5): pp. 1642-1655.
    Source Title
    Research in Developmental Disabilities
    DOI
    10.1016/j.ridd.2013.01.028
    ISSN
    0891-4222
    School
    School of Occupational Therapy and Social Work
    URI
    http://hdl.handle.net/20.500.11937/59546
    Collection
    • Curtin Research Publications
    Abstract

    Intellectual disability (ID) and autism spectrum disorder (ASD) are frequently co-occurring conditions. Carefully diagnosing ASD in individuals with ID would allow for more tailored clinical interventions that would improve mental health and quality of life. In this study, we evaluated the psychometric properties of the Autism Diagnostic Observation Schedule (ADOS) and the Autism Diagnostic Interview-Revised (ADI-R) in a clinical sample of 79 adults with ID who were suspected of also having ASD. In the testable cases (68%), the ADOS was over-inclusive (specificity 45%) but highly sensitive (100%) of ASD. In the ADI-R, the feasibility was 37%, with a sensitivity of 88% and a specificity of 80%. Previously proposed adaptations of the ADOS algorithm were evaluated, and new items and tasks were suggested. The ADOS and the ADI-R were found to be valuable diagnostic tools for adults with ID. Adjustments of the setting and the tasks may further improve their feasibility and specificity.

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