RTI will evaluate the school-based mental health (SBMH) program in 24 elementary and middle schools in Charlotte-Mecklenburg, North Carolina. Researchers will compare schools receiving two versions of the enhanced SBMH model with comparable schools that continue to operate with their current approaches to mental health. Researchers will determine benefits for male and female students receiving mental health services, as well as additional student-level outcomes such as violence and bullying perpetration, victimization, and witnessing violence at school. Additionally, researchers will examine school-level outcomes such as school climate, perceptions of school safety, and disciplinary infractions. Implementation science principles will inform process evaluation, sophisticated statistical modeling will be used for outcome evaluation, and the cost-effectiveness evaluation will offer practitioners and policymakers practical, research-based information for making school safety decisions.