One assessment, the Predictive Pivotal Response Training Profile Assessment (PPPA), accurately determines which children are most likely to respond well to this evidence-based, naturalistic behavior intervention. But to date, the training required to administer the PPPA has been so time-consuming as to limit its use in clinical settings. A modified version of the original PPPA, designed specifically for autism service providers in community settings, is currently being developed. In this project, Dr. Schreibman's fellow will systematically evaluate the validity of the modified PPPA. Once validated, the modified version would allow service providers to quickly and efficiently determine if Pivotal Response Training should be included in the intervention program of a particular child.