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Abstract The University of California at Los Angeles‐Young Autism Project (UCLA‐YAP) provides one of the best known and most researched comprehensive applied behavior analysis‐based intervention models for young children on the autism spectrum. This paper reports a systematic literature review of replication studies over more than 30 years. The data show that the relatively high‐intensity UCLA‐YAP model can be greatly beneficial for children on the autism spectrum, particularly with regards to their cognitive functioning and adaptive behavior. This review concludes that, while more research is always welcome, the impact of the UCLA‐YAP model on autism interventions is justified by more than 30 years of outcome evidence.
Nicolosi et al. (Tue,) studied this question.