The pediatric obsessive compulsive disorder treatment study for young children (POTS Jr): Developmental considerations in the rationale, design, and methods

► The methods of the Pediatric OCD treatment study for young children (POTS Jr) are presented. ► POTS Jr is a multi-site RCT of family-based CBT vs. family-based RT for children ages 5-8 with OCD. ► This paper describes how the study was designed to meet the needs of young children with OCD.