This study aims to investigate whether Girl2Girl, a text messaging-based pregnancy prevention program for cisgender LGB+ girls, had different effects on subgroups based on age, sexual identity, and experience with penile-vaginal sex. A total of 948 girls, 14-18 years old, were recruited nationally via social media and enrolled over the telephone.…

Transgender individuals are disproportionately affected by HIV in the United States. Given increased risk of HIV among youth, there is a need to understand HIV risk and protective factors among transgender individuals who are 18 years and younger. Patterns of HIV testing, HIV education, and condom use have known associations with HIV outcomes…

Peer beliefs and attitudes play a prominent role in adolescent behaviors. Various curricula have been developed to teach students about sexual health from a skills-based perspective with successful, lasting effects. This study examined how adolescents' expectancies for success in and values held for a sexual health curriculum are related to their…

A better understanding of the complex relationships between HIV knowledge, self-efficacy, perception of peer condom use, and condom-use intention is needed for improving HIV prevention among adolescents. The study analyzed survey data collected from high school students (N = 1970) in the Bahamas. Mediation and moderated mediation modeling analyses…

Purpose: The purpose of this study was to investigate the feasibility and effectiveness of a gender-specific intervention targeted to adolescent males to reduce sexual risks. Method: This study used a randomized clinical trial comparing a broad-based male empowerment curriculum with a no-treatment control group. The sample (N = 580) was recruited…

Background: Early sexual reproductive health (SRH) education is linked to a reduction in risky sexual behaviors. Sexually transmitted infections (STIs) are rising at alarming rates. Risky sexual behaviors, including initiation of sex before age 13, having more than four sexual partners, and lack of use of condoms, increase the chance of infection…

Although the rate of sexual intercourse among adolescents has increased in Asian countries, including Korea, many sexually active adolescents still do not use contraception. The aim of this study was to identify the risk factors for contraceptive nonuse among adolescents using decision tree analysis of the 2018 Korea Youth Risk Behavior Survey…

Recent international documents and educational standards have recommended Science Education be based on three dimensions (Scientific Practices, Crosscutting Concepts, and Disciplinary Core Ideas). This has resulted in an increased interest in research involving Scientific Practices in Science Education. The objectives of this article are to: I)…

Background: School-based human immunodeficiency virus (HIV) education can reach most adolescents, but inconsistencies exist in state-level content policies. The purpose of this study was to evaluate the associations between state-level high school HIV education policies and adolescent HIV risk behaviors. Methods: This was a cross-sectional…

This study compared the extent to which Hispanic teenagers talk with mothers, fathers and extended family members about risks of sex, protection and relational sex, as well as the role of teenagers' gender on the association between sexuality communication and risky sexual behaviours. The analysis is based upon 474 Hispanic young people's…

Chapter 1 studies how the interaction of student information with constraints dictated by market design determines higher education choices and outcomes. I study strategic application incentives in imperfect implementations of centralized assignment mechanisms in higher education. I ask whether, in markets with both a central match for public…

This paper explores the use of withdrawal as a harm reduction approach to adolescent pregnancy prevention and its association with condom use. Data come from a baseline survey of a randomised controlled trial to test the effectiveness of FLASH, a sexual health education curriculum. Study participants completed electronic self-report surveys in…

Increases in STD cases in Indiana communities have led to questions about the sexual health of adolescents. School-based sex education can help teenagers adopt healthy attitudes and behaviours. Effective sex education programmes should involve learning from adolescents and young people about their health needs. Student voice, however, is generally…

Little attention has been paid to goal structures in health education, despite their well-established roles in motivation and learning. The primary goal of this study was to examine the longitudinal relations of classroom goal structures to high school students' (N = 636) motivation and learning outcomes in health education. We incorporated two…

Sexual health promotion and Relationships and Sexuality Education (RSE) are influenced by interrelated social and cultural factors, particularly in a rural setting. This paper reports on findings from interviews with young people when asked about experiences and perspectives accessing RSE and sexual health services in a small rural Australian…