A Center Based Study of Pivotal Response Treatment for Preschoolers With Autism

Inclusion Criteria

• •Diagnosis of Autism Spectrum Disorder (ASD) based on clinical interview and Diagnostic and Statistical Manual, 5th edition (DSM-5) and confirmed using the Autism Diagnostic Interview Revised (ADI-R) and Autism Diagnostic Observation Schedule, 2nd edition (ADOS-2) or Childhood Autism Rating Scale (CARS-2); Diagnostic and Statistical Manual, 5th edition (DSM-5), and expert clinical opinion
• •Boys and girls between 2 years and 3 years and 11 months
• •Ability to participate in the testing procedures to the extent that valid standard scores can be obtained
• •Stable treatment (e.g., applied behavior analysis (ABA), speech therapy, psychotropic medication(s) or biomedical intervention(s) for at least 1 month prior to baseline measurements with no anticipated changes during study participation
• •Developmentally delayed with Mullen Scales of Early Learning (MSEL) or Developmental Profile (DP-4) composite score below 85 (1 Standard Deviation below the mean)
• •Availability of at least one English-speaking parent who can consistently participate in parent training and research measures.