Although the literature suggests that it is feasible to train paraprofessionals to effectively implement social interventions for students with Autism Spectrum Disorders (ASD), there is a paucity of research that addresses the social validity of these programs. The present study replicated and extended previous research on paraprofessional training, as well as assessed social validity. Our results suggest that (a) paraprofessionals can be trained to fidelity using a package consisting of lecture and performance feedback, (b) there are collateral gains for paraprofessionals following the training, (c) the social interactions between students with ASD and typically developing peers improve following paraprofessional training, and (d) there is strong social validity in regard to acceptability of the training program. Limitations and future directions are discussed.