THE SWEDISH VERSION OF THE CHILDHOOD AUTISM RATING-SCALE IN A CLINICAL SETTING

The Childhood Autism Rating Scale (CARS) is an instrument for screenin g and diagnosis of autism. The present study was performed to assess t he interrater reliability of a Swedish version of the CARS when used i n a clinical setting. The procedure used mimicked a frequent form of c onsultation in neuropsychiatry and pediatric neurology. During a restr icted time period, both an interview with the parents and observation of the child take place. Often this assessment is an important screeni ng procedure and directs further investigation. CARS was used for rati ng autistic behavior by two investigators in 25 children. A variant of the weighted kappa statistic (correcting for chance and for degrees o f disagreement) showed values between .53 and .75 (indicating fair to excellent agreement). Aspects of validity and reliability are discusse d.