Socioemotional Development

The goal of this clinical trial is to optimize a school-based therapeutic play intervention in preschool students with mild to moderate school adjustment difficulties. The aims are: 1. Determine the independent and combined effects of three intervention components (individual play, peer play, and classroom push-in sessions) on preschool children's social and emotional competence, using a factorial experimental design. 2. Use a community-engaged approach to identify and disseminate the optimized version of Primary Project for preschool implementation Researchers will compare the main and interactive effects of three components on children's social-emotional competencies. Participants will take part in a therapeutic play intervention in the school setting, and their teachers and caregivers will complete assessment instruments on children's social and emotional functioning.

The purpose of this study is to determine the effects of early intervention (placement into foster care, and a caregiving training) on physical, cognitive, social and brain development and psychiatric symptomatology in children place in out-of-home care.