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Diagnosing autism spectrum disorders in pre-school children using two standardised assessment instruments: The ADI-R and the ADOS

Lookup NU author(s): Professor Ann Le Couteur, Donna Hammal, Emerita Professor Helen McConachie


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The reliable diagnosis of Autism/Autism Spectrum Disorder in pre-school children is important for access to early intervention and for accurate ascertainment for research. This paper explores the combined use of two standardised assessment instruments-the Autism Diagnostic Interview Revised (ADI-R) and the Autism Diagnostic Observation Schedule (ADOS)-in a large sample of pre-school children. The children were recruited to research studies, and a 'best estimate' clinical diagnosis reached. The findings show good agreement between the instruments especially for children with core Autism. The instruments appear to have a complementary effect in aiding diagnosis and confirm the importance of a multidisciplinary assessment process with access to information from different sources and settings. The presence of repetitive behaviours during the ADOS appeared of diagnostic significance. © 2007 Springer Science+Business Media, LLC.

Publication metadata

Author(s): Le Couteur A, Haden G, Hammal D, McConachie H

Publication type: Article

Publication status: Published

Journal: Journal of Autism and Developmental Disorders

Year: 2008

Volume: 38

Issue: 2

Pages: 362-372

ISSN (print): 0162-3257

ISSN (electronic): 1573-3432

Publisher: Springer New York LLC


DOI: 10.1007/s10803-007-0403-3

PubMed id: 17605097


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