The study assesses school climate and bullying across 45 schools in 20 rural districts and 5 counties of Southern Illinois. Investigators also evaluated the effectiveness of a low-cost, component-based intervention that focused on improving classroom management, playground monitoring, and school-wide disciplinary procedures. This mixed-methods study incorporated hierarchical linear modeling, with mixed-effects longitudinal models for repeated outcomes. The project design incorporated random assignment, with multiple pre- and post-intervention assessments. Major categories of variables include: students' feeling of safety in school areas; students' history of involvement in or observation of bullying; staff opinion and experience of bullying prevention methods; school policies on bullying; staff completion of training workshops; and demographics. The units of analysis are individuals and schools.