RecruitingBehavioural interventionRegulating Together for Prader-Willi Syndrome: A Group Behavioral Therapy for Emotion DysregulationThe goal of this study is to help teens with Prader-Willi Syndrome (PWS) and their families learn practical strategies for managing issues like irritability, meltdowns, and anxiety. The main objective of the study is: To adapt current Regulating Together materials to create an outpatient group program for emotion dysregulation in Prader-Willi Syndrome (PWS) that will improve psychosocial outcomes for youth with PWS.