Disruptive behavior problems frequently emerge in the preschool years and are associated with numerous, long-term negative outcomes, including comorbid disorders. First Step is a psychosocial early intervention with substantial empirical evidence supporting its efficacy among young children. The present study reports on a validation study of the…

Assessment is at the center of a decision-making model within a Response to Intervention (RTI) framework. Assessments that can be used for universal screening and progress monitoring in early childhood RTI models are needed that are both psychometrically sound and appropriate to meet developmental needs of young children. The Preschool Early…