Adolescents' attitudes predict sexual behavior; therefore, attitudes are targeted in sexually transmitted infection (STI) and pregnancy prevention programs. However, attitudes and behaviors do not always align. Young adolescents who have had penile vaginal intercourse (PVI) and have attitudes supportive of PVI have two risk factors for future…

Poor sleep in adolescents is a global health problem. This study examined Chinese adolescents' sleep quality types by using a person-centered approach and examined the associations of adolescent sleep quality types with psychological characteristics and health risk behaviors. Using data from 1,310 Chinese adolescents (53.7% male; mean age = 13.48…

The purpose of our study was to investigate the potential relationships in Hispanic adolescents (n = 575) between substance use and/or risky sexual behaviors and (a) physical activity (PA) and (b) sedentary time and (c) the moderating effect of gender. PA levels and sedentary behaviors were assessed using the PA Questionnaire for Adolescents,…

Identifying factors that influence adolescents' decisions to start smoking is necessary to improve interventions for reducing tobacco use. The current longitudinal study was designed to determine the direction of influence between feelings of invulnerability to harm and cigarette smoking, and to test whether the perceived risks and benefits of…

Of the handful of national studies tracking trends in adolescent substance use in the United States, only the Health Behavior in School-Aged Children (HBSC) study collects data from 6th through 10th graders. The purpose of this study was to examine trends from 1998 to 2010 (four time points) in the prevalence of tobacco, alcohol, and marijuana use…

Children with low socioeconomic status and ethnic minorities experience disproportionate risk of elevated depressive symptoms. This study examines the effects of risk/protective factors for depressive symptoms among multiethnic urban preadolescents. Eighth graders (N = 463; 34% African American, 29% Hispanic, 17% White, and 20% Other/Mixed; 23%…

The objective of this study was to investigate the demographic distribution of selected health-related behaviors and their relationship with different indicators of well-being. The data come from Wave 1 of the youth panel of "Understanding Society" household panel study. The Strengths and Difficulties Questionnaire (SDQ) measured…

Injury is a leading cause of mortality and morbidity among adolescents in developed countries. Jessor and Jessor's Problem Behavior Theory suggests an association between risk behaviors (e.g., smoking, drunkenness, cannabis use, and sexual intercourse) and adolescent injury. The present study examined whether early engagement in risk behaviors…

Examined relation of possible selves to smoking and drinking for 1,606 sixth through ninth graders. Found that smoking and drinking were related negatively to number of positive expected selves and balance between expected selves and feared selves. When both possible-selves were entered in model simultaneously, only the number of positive expected…