Challenging behavior in young children is prevalent, impacting 10-30% of those under age 5. Such behavior includes aggression, noncompliance, self-injury and can interfere with learning and social engagement. Over time, children who exhibit challenging behaviors face higher risks of poor academic and social outcomes including expulsion, peer rejection, and special education placement. Additionally, teachers report that challenging student behaviors negatively impact their job satisfaction and likelihood of remaining in the profession. Despite the impacts, few children exhibiting early problem behaviors receive intervention services.