RESUMO
PURPOSE: To estimate the effect of the Making Proud Choices! (MPC) curriculum, one of the most popular evidence-based teen pregnancy prevention curricula being implemented nationwide. METHODS: A cluster randomized trial was used to assign high schools to receive the MPC program or to serve as a standard care comparison group. The study took place in 15 schools in four cities in the United States. A total of 31 clusters and over 2,800 youth (predominantly in grades 9 and 10) were assigned to condition between 2016 and 2019. Student surveys administered at baseline and approximately 9 months after baseline were used to estimate the effects of MPC on risk and protective factors (knowledge, attitudes, self-efficacy) as well as sexual behavior outcomes. RESULTS: The evaluation showed several large, statistically significant, and favorable impacts on nearly all of the risk and protective factors for risky sexual behavior. In addition, the study found a favorable effect of MPC on reducing the number of episodes of sex in the past 3 months. DISCUSSION: The evaluation showed that MPC, as it is commonly implemented today, has evidence of effectiveness on improving both risk and protective factors, and sexual behavior outcomes. Based on these findings, MPC will continue to be seen as an evidence-based teen pregnancy prevention program for implementation through federal grant programs.