Brief report: Autism in individuals with Down syndrome

Starr, EM
Kazak Berument, Sibel
Tomlins, M
Papanikolaou, K
Rutter, M
As an off-shoot of a study examining the reliability and validity of an adapted version of the Pre-Linguistic Autism Diagnostic Observation Schedule (A-PL-ADOS), 13 individuals with Down syndrome with IQs ranging between 24 and 48 were administered the Autism Diagnostic Interview-Revised (ADI-R) and the A-PL-ADOS, which are well-validated interview and observational diagnostic measures. Three out of 13 met lifetime criteria on the ADI-R, but none of these three showed behavior that met the criterion for autism on the APL-ADOS (although two nearly did so). However, two individuals did meet the A-PL-ADOS criterion and showed behavior that fell only just short of meeting lifetime criteria on the ADI-R. Altogether, 5 individuals with Down syndrome may be considered to show an autism spectrum disorder. Of the remaining 8, some showed a few autistic features, and some showed none. The findings raise both methodological and conceptual issues.


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Citation Formats
E. Starr, S. Kazak Berument, M. Tomlins, K. Papanikolaou, and M. Rutter, “Brief report: Autism in individuals with Down syndrome,” JOURNAL OF AUTISM AND DEVELOPMENTAL DISORDERS, pp. 665–673, 2005, Accessed: 00, 2020. [Online]. Available: