Bidirectional influences of caregiver utterances and supported joint engagement in children with and without autism spectrum disorder.

Our findings suggest that caregivers of children with autism spectrum disorder (ASD) may be particularly adept at timing their talk to follow moments of high-level joint engagement, and that follow-in directives are particularly facilitative of high-level joint engagement. Future intervention work can capitalize on these findings to support high level caregiver-child engagement around toys, which may promote development in children with ASD.