The Autism Diagnostic Observation Schedule, a standardized protocol for observation of social and communicative behavior associated with autism, is described. Data on interrater reliability as well as test-retest reliability and discriminant validity are provided. (Author/DB)

This study evaluated the Clarke modification of the Questionnaire on Resources and Stress with parents (n=367) of autistic, mentally retarded, learning-disabled, and asymptomatic children. Good internal consistency, split-half reliability, and coefficient of stability were obtained as well as acceptable construct and concurrent validities.…