Teachers and administrators across the United States struggle to maintain safe, civil, and community- and achievement-oriented schools. Disciplinary actions (such as school suspensions) and security measures (such as school resource officers/security guards and security cameras) are some approaches commonly used in schools to try to improve school…

This is the second and final report summarizing findings from an impact evaluation of a violence prevention intervention for middle schools. This report provides findings from the second and third years of the 3-year intervention. The U.S. Department of Education (ED) contracted with RTI International and its subcontractors, Pacific Institute for…

This paper uses data from the Head Start Impact Study (HSIS), a nationally representative multisite randomized trial, to quantify variation in effects of Head Start during 2002-2003 on children's cognitive and socio-emotional outcomes relative to the effects of other local alternatives, including parent care. We find that (1) treatment and control…