The Centers for Disease Control and Prevention's (CDC) Youth Risk Behavior Surveillance System (YRBS) has a long history of providing representative data on the nation's high school students. These assessments are crucial to CDC's mission of identifying health behaviors and experiences; understanding the determinants and co-occurrence of risks;…

Focus groups (N = 15 groups; 8 with girls, 7 with boys) with adolescents in high schools near Cape Town, South Africa, were used to conduct a qualitative investigation of reported reasons for using and not using substances and for having and not having sex. Adolescents reported Enhancement, Negative States, Social, and Aversive Social motivations…

Understanding the progression of violent and nonviolent criminal activity remains a matter of theoretical debate. In the present study, the authors build on criminological theory and assess the extent to which the progression of violent and nonviolent criminal behaviors follows different trajectories. The authors rely on semiparametric mixture…

Relatively little is known about characteristics of sexual assault survivors who present to the emergency room. Examination of differences in survivor, assault, and exam characteristics by type of offender (intimate partner, acquaintance, acquaintance-just-met, and stranger) was conducted using intake data collected from 331 women who presented to…

In this article, the author discusses the social issues that concern the young adolescents in Russia and their early onset to sexual activity. The early onset of sexual activity among adolescents in Russia is taking place under conditions that are quite specific. These conditions include: a low level of contraceptive awareness, a very small number…