In community colleges, English Language Learners (ELL) comprise several subgroups of students, each of which has a distinct background and data profile. Among these subgroups, three clearly emerge, each of which interact with placement systems and curriculum in distinct ways based on their prior educational experiences and contexts. These three…

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…

The study reported here investigated the impacts of participation in 4-H on young people's interest and participation in science. Survey data were collected from relatively large and ethnically diverse samples of elementary and high school-aged students in California. Results indicated that although elementary-grade 4-H members are not more…

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…

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…

This study explores developing conceptions of feminism among Latina adolescents, their prevalence of feminist endorsement, and whether home environment and well-being are related to feminist identity. One hundred and forty Latina girls (Grades 9 to 12, M age = 15) wrote personal narratives of their understanding of feminism and whether they…

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…

A growing body of research indicates that lesbian, gay, bisexual, and transgender (LGBT) students are often unsafe at school. Little research has examined school safety for students with LGBT parents. We examined adolescents' perceptions of school safety for students with LGBT parents using data from a survey of 2,302 California sixth through…

The "Morbidity and Mortality Weekly Report" ("MMWR") Series is prepared by the Centers for Disease Control and Prevention (CDC). Data in the weekly "MMWR" are provisional, based on weekly reports to CDC by state health departments. This issue of "MMWR" contains the following studies: (1) Youth Risk Behavior…

There is continuing controversy about the optimal or appropriate age at which children should start school. The purpose of this study is to examine the relationship between age and achievement. It is an attempt to evaluate the hypothesis that older students fare better academically than their younger classmates. Findings indicate that on average…