Primary Project (formerly known as Primary Mental Health Project) is one of the longest standing and well-established school-based preventative mental health interventions for addressing the social, emotional, behavioral, and learning needs of preschool through primary grade children. Existing now for over 60 years and building on its historical…

Randomized experiments have long been established as the gold standard for addressing causal questions. However, experiments are not always feasible or desired, so observational methods are also needed. When multiple observations on the same variable are available, a repeated measures design may be used to assess whether a treatment administered…

Until recently, teen pregnancy and birth rates had declined steadily in the United States in recent years. Despite these declines, the United States has the highest teen birth rate and one of the highest rates of sexually transmitted infections (STIs) among all industrialized nations. To help young people reduce their risk for pregnancy and STIs,…

Until recently, teen pregnancy and birth rates had declined in the United States. Despite these declines, U.S. teen birth and sexually transmitted infection (STI) rates remain among the highest in the industrialized world. Given the need to focus limited prevention resources on effective programs, Advocates for Youth undertook exhaustive reviews…