The social and ecological validity of a body of research may impact the degree to which interventions will be used outside of research contexts. The purpose of this review was to determine the extent to which social and ecological validity were demonstrated for interventions designed to increase social skills for young children with autism spectrum disorders (ASD). Results indicated that although the percentage of studies including social validity assessment has remained stable over the 20-year review period, subjective assessments of social validity have increased and objective assessments have decreased. Acceptability was measured more often than feasibility or importance. Approximately half of the studies included indigenous implementers, typical social partners, or typical settings. Suggestions include additional research on the validity of measures, explicit reporting by researchers, and the use of multiple, objective, and psychometrically sound social validity assessments.