Thirty-one, representative, one- to three-year-old children with autism spectrum disorders (ASD) were given the MacArthur Communicative Developmental Inventory (CDI) for parent completion and the Reynell Developmental Language Scales III (RDLS) for assessment by a speech and language pathologist. Correspondence across scales was good to excellent,…

Deferred imitation and early social communication skills were compared among speaking and nonspeaking children with autism and children developing typically. Overall, the children with autism showed a lower frequency on measures of deferred imitation and social communication compared with typically developing children. Deferred imitation was…