Journal of Autism and Developmental Disorders

, Volume 28, Issue 2, pp 143-151

First online:

The Autism Diagnostic Interview-Revised and the Childhood Autism Rating Scale: Differences Between Diagnostic Systems and Comparison Between Genders

  • Tammy PilowskyAffiliated withHebrew University of Jerusalem
  • , Nurit YirmiyaAffiliated withDepartment of Psychology or School of Education, Hebrew University of Jerusalem
  • , Cory ShulmanAffiliated withHebrew University of Jerusalem
  • , Ronit DoverAffiliated withHebrew University of Jerusalem

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Diagnoses for autism based on the Autism Diagnostic Interview-Revised (ADI-R) and the Childhood Autism Rating Scale (CARS) were examined for 83 individuals with suspected autism. Agreement between systems reached 85.7%. Participants receiving diagnosis of autism based on only one system were significantly younger in age than individuals receiving diagnoses according to both systems. Individuals who did not receive diagnosis of autism on the ADI-R had lower chronological and mental ages and lower CARS scores compared to individuals who received diagnosis of autism based on the ADI-R. Eighteen females and 18 males were matched to examine possible gender differences. No significant findings were revealed, suggesting that the symptoms of autism according to the ADI-R and CARS do not differ between males and females when matched for chronological and mental ages.

Autism diagnosis Autism Diagnostic Interview-Revised Childhood Autism Rating Scale