The Risk and Protective Factor Model of Prevention is based on the simple premise that to prevent a problem from happening, the factors that increase the risk of that problem developing need to be identified and ways to reduce the risks found. Research on risk and protective factors has important implications for prevention efforts. The premise of this approach is that in order to promote positive youth development and to prevent problem behaviors, it is necessary to address those factors that predict the problem. By measuring risk and protective factors in a population, specific risk factors that are elevated and widespread can be identified and targeted by preventive interventions that also promote related protective factors. For example, if academic failure is identified as an elevated risk factor in a community, then mentoring and tutoring interventions can be provided that will improve academic performance, and also increase opportunities and rewards for classroom participation. Shown are the links between the 19 risk factors and the 5 problem behaviors. Demographics, risk and protective framework, tools for assessment and planning, how to read charts, data charts and tables, risk and protective factor definitions, and contacts for prevention are also provided. Data were collected from more than 60,000 students from all 15 counties in Arizona. Tables