This study examined relations between student engagement and drug use using data obtained from the statewide biennial California Healthy Kids Survey. Latent variable modeling with confirmatory factor analysis indicated four conceptually distinct and psychometrically sound factors capturing academic motivation, school connectedness, caring…

Across countries, the age and timing of when children navigate school transition varies, as does provision of support during this challenging time. These two factors can heavily shape young people's adjustment, yet to date there is minimal research which has investigated how this period is navigated in different cultures. The aim of the present…

To date, there is a paucity of empirical evidence that examines gang membership in schools. Using statewide data of 7th-, 9th-, and 11th-grade students from California, this study focuses on the prevalence of gang membership by county, region, ethnicity, and grade level. Bivariate and multivariate logistic regression analyses were employed with…

Despite post-racial rhetoric, stereotypes remain salient for American youth. We surveyed 150 elementary and middle schoolers in Northern California and conducted case studies of 12 students. Findings showed that (a) students hold school-related stereotypes that get stronger in middle school, (b) African American and Latino students experience…

Urban middle school physical education teachers undertook action research to understand activity preferences of their sixth and seventh graders (n = 701) as they sought to modify curriculum for enhancing student engagement. Students completed an anonymous survey of basic demographic characteristics and interest in participating in 24 physical…

Reducing risky sexual behaviors and their negative health outcomes in youth remains a priority for health educators. Years of research have documented media's effect on various adolescent health risks, including sexual behaviors. As technology evolves and youth access to media increases, understanding the role of media in adolescent health risk…

Value-added (VA) models measure teacher contributions to student learning and are increasingly employed in educational reform efforts. Using data from 35 seventh-grade teachers and 2,026 students across seven schools, we employ VA methods to measure teacher contributions to students' motivational orientations (mastery and performance achievement…

Understanding what children know is paramount to planning effective science instruction; however, in any classroom, the students hold a variety of ideas. Representing these differences in ways that also acknowledge the common trends among students might facilitate the process of differentiation. To exemplify one such possible process of…

The purpose of this study was to determine whether age differences affect students' academic achievement, and whether age differences affect students in low-income areas differently than those in mixed or higher-income areas. Student achievement data for grades 3, 7, and 11 in language arts and math were obtained from a variety of schools located…

Few studies have investigated school-based, positive development for lesbian, gay, bisexual, and queer (LGBQ) youth, despite knowledge of their heightened negative school experiences compared to heterosexual youth (e.g., school victimization). This study examines associations among participation in Gay-Straight Alliance (GSA)--related social…

In the study reported here, the authors examined the LEs (learning expectations) related to Grades 1 to 8 number and quantity in mathematics across several US states and high performing TIMSS (Third International Mathematics and Science Study) Asian countries, including Singapore, Taiwan and Japan. The general strategy used is based on the topic…

Exergames (active video games that require kinesthetic movement) played in proximity to other players or against a gaming machine have been linked to positive increases in cognitive functioning. This study tested to see if remote exergame play over the Internet had an impact similar to exergames that are played in proximity. The study shows that…

Students who are victimized by their peers are at risk for developing depressive symptoms, which is detrimental for academic and social development. Social support may be a protective factor for peer victims, and the manner in which this occurs may vary according to gender, age, and other demographic variables. This study examined the main and…

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…

This study reports on our steps toward achieving a conceptually coherent and empirically validated learning progression for carbon cycling in socio-ecological systems. It describes an iterative process of designing and analyzing assessment and interview data from students in upper elementary through high school. The product of our development…