Background: How adolescents spend their out-of-school time represents one of the most important factors for predicting positive youth development. Sport participation relates to many beneficial outcomes. However, current economic conditions threaten high school sport programs around the United States. This investigation examined relationships by…

Background: Despite the numerous physiological, psychological, and academic benefits of physical activity (PA), declines in PA levels among girls have been observed over the last decade. The purpose of this preliminary study was to assess the short-term changes pertaining to Girls on the Run and Girls on Track developmentally focused youth sport…

Background: This study sought to elucidate students' perceptions of school food environments and to assess correlations between perceptions and purchasing and consumption behaviors at school. Methods: Seventh and ninth graders (n = 5365) at 19 schools in multiethnic, low-income California communities participating in the Healthy Eating Active…

Background: This intervention study examined the prevalence of bullying in an urban/suburban middle school and the impact of the Olweus Bullying Prevention Program (OBPP). Methods: A quasi-experimental design consisting of a time-lagged contrast between age-equivalent groups was utilized. Baseline data collected for 158 students prior to…

Background: Caffeine, the only licit psychoactive drug available to minors, may have a harmful impact on students' health and adjustment, yet little is known about its use or effects on students, especially from a developmental perspective. Caffeine use in 5th- and 10th-grade students was examined in a cross-sectional design, and relations and…

Background: The goal of this study was to assess the association between bullying and symptoms of depression among middle school students in Chile. Methods: Secondary data analysis of Chile's 2004 Global School-Based Health Survey. Results: A total of 8131 middle school students participated in the study. Forty-seven percent of students reported…

Background: Physical activity (PA) declines as children and adolescents age. The purpose of this study was to examine how specific school factors relate to youth PA, TV viewing, and body mass index (BMI). Methods: A sample of 12- to 18-year-old adolescents in 3 cities (N = 165, 53% females, mean age 14.6 [plus or minus] 1.7 years, 44% nonwhite)…

Background: To evaluate the effect on problem behaviors of a universal school-based prevention curriculum of third grade students. Methods: Six regular classes in 1 elementary school were randomly assigned to an intervention (n = 208) or control (n = 209) group. A 13-session program was offered to students in the intervention group. The Achenbach…

Background: This study examined the prevalence of oral sexual activity in rural Midwestern adolescents. We also examined the correlates of a series of risk behaviors with oral sexual activity. Methods: A questionnaire based on the Youth Risk Behavior Surveillance System was distributed to 2121 rural middle and high school students in grades 6-12…

Background: Schools have the opportunity, through the National School Lunch Program and Local School Wellness Policies, to have a significant impact on healthy eating behaviors. An understanding of children's and adolescents' food preferences in relation to gender and age will facilitate the successful creation of both healthy and financially…

Background: Using the Chinese version of the Global School-based Health Survey (GSHS), this article describes the prevalence of being bullied among a nationally representative sample of Chinese students in grades 6-10 and explores the relationships between being bullied and selected indicators of psychosocial adjustment. Methods: A total of 9015…

Background: Little is known about pre-pubescent Filipino children's involvement in moderate-to-vigorous physical activity (MVPA). There are international guidelines regarding required levels of MVPA for healthy children. Methods: This study describes participation of 11- to 12-year-olds in randomly selected public and private schools in San Juan,…

Background: The school setting is frequently used both to educate youth about risks involved in tobacco use and to implement tobacco prevention and cessation programs. Given that school-based programs have resulted in limited success, it is necessary to identify other setting-level intervention strategies. School tobacco policies represent a type…

Background: Tobacco use is a major preventable cause of death in the world. This article describes and compares tobacco use prevalence for students attending junior high schools and senior high schools in Taiwan. Methods: This report uses data from the Global Youth Tobacco Survey (GYTS) completed among 4689 junior high school students and 4426…

Background: Millions of young children attend preschools and other structured child development programs, but little is known about their physical activity levels while in those settings. The purpose of this study was to describe the physical activity levels and demographic and school-related correlates of physical activity in children attending…