Recent research has suggested the importance of understanding for whom programs are most effective (Supplee et al., 2013) and that multidimensional profiles of risk and protective factors may moderate the effectiveness of programs (Lanza & Rhoades, 2012). For school-based prevention programs, moderators of program effectiveness may occur at…

Background: Despite overall declines in risky teen sexual activity, racial and ethnic disparities persist. This study compared abstinence-only and comprehensive teen pregnancy prevention (TPP) programs to explore the effects of the programs on teen sexual activity-related outcomes that may differ by race/ethnicity. Methods: Program evaluation data…

Comprehensive sexual health education is critical for the prevention of STIs and unintended pregnancy among young people. Yet, increasing barriers to comprehensive sexual health education in classroom settings underscore the importance of youth-friendly technologies to address sexual health among young people. "It's OK to Ask Someone"…

Santa Ana, California has the highest teenage birth rate in Orange County, USA, at 28.2 per 1,000 women aged 15-19 as compared to 12.0 per 1000 women of similar age elsewhere in the county. In the light of this disparity, University of California Irvine medical students surveyed a convenience sample of 9th grade students (aged 14-15 years) in…

We provide theory and evidence about how the design of college financial aid programs affects a variety of high school, college, and life outcomes. The evidence comes from an eight-year randomized trial where 2,587 high school ninth graders received a $12,000 merit-based grant offer. During high school, the program increased their college…

Objective: This study evaluated the longitudinal impact of the Teen Outreach Programme (TOP) on adolescent pregnancy, sexual behaviour, risky sex and sexual intentions in non-metropolitan high schools. Design: Pair-matched, cluster randomised controlled trial. Setting: Non-metropolitan public high schools in Florida, USA. Methods: TOP was…

Background: The US Office of Adolescent Health (OAH) funded studies of teen pregnancy and sexually transmitted infection (STI) prevention programs in 2010. The results of a 5-year OAH study conducted in the state of Hawai'i with middle school youth has implications for school leaders in the selection and implementation of comprehensive sex…

In the United States, adolescents 15 to 24 years of age account for nearly half of new cases of sexually transmitted infection (STI) each year, and female adolescents 15 to 19 years of age account for 24.2 of every 1000 births, 17% of which are repeat births. The provision of evidence-based sexual health curricula is indicated. To be effective,…

Background: The purpose of this study is to compare the effectiveness of a national comprehensive teen pregnancy prevention (TPP) intervention to a national abstinence-only TPP intervention on middle school students' knowledge, attitudes, and behaviors related to teen sexual behaviors in a state with high teen birth rates. Methods: Pre- and…

Background: Few HIV/STI and pregnancy prevention programs for youth in American Indian and Alaska Native (AI/AN) communities have been rigorously evaluated despite sexual health disparities in this population. This study reports the evaluation of a culturally adapted Internet-based HIV/STI and pregnancy prevention program for AI/AN youth, Native…

The State Compensatory Education (SCE) program is designed to reduce dropout rates and increase academic performance of students identified as being at-risk of dropping out of school. For this year's evaluation of SCE, the State of Texas Assessments of Academic Readiness (STAAR) served as the state assessment measures for grades 3 through 8 and…

Teenage pregnancy is a major public health issue in the USA; this is especially true in the state of South Carolina (SC). Research shows that well developed, good-quality teenage pregnancy prevention (TPP) programmes can be effective in modifying young people's sexual behaviour. While several quantitative studies have examined parents' perceptions…

The State Compensatory Education (SCE) program is designed to reduce dropout rates and increase academic performance of students identified as being at-risk of dropping out of school. SCE operates as a funding source to supplement instructional services and offer academic support to students who meet the SCE at-risk criteria established by the…

Sex education in middle and high school health classes is critically important because it frequently comprises the primary mechanism for conveying information about sexual health to adolescents. Deliver evidence-based information on HIV and pregnancy prevention practices and they will be less likely to engage in risky sexual behaviors, the theory…

Introduction: Group-randomized trials (GRTs) are one of the most rigorous methods for evaluating the effectiveness of group-based health risk prevention programs. Efficiently designing GRTs with a sample size that is sufficient for meeting the trial's power and precision goals while not wasting resources exceeding them requires estimates of the…