This study examined whether adolescent students' externalizing behavior and prosocial behavior affects their academic achievement (i.e., school grades and standardized test scores) in two major academic domains (i.e., mathematics and German) over and above well-established determinants of school achievement (i.e., prior achievement, intelligence,…

The goal of this study was to explore longitudinal associations between preference for solitude (PFS) and depressive symptoms among early adolescents in mainland China, with a focus on separating between-person and within-person effects using a random intercept cross-lagged panel model (RI-CLPM). Participants were N = 1039 Chinese early…

Recent research has shown that internal factors are important predictors of adaptation, but little research has studied the relationship between a sense of coherence and school adaptation. The present study examined the mediating and moderating mechanisms underlying this relationship. A total of 1,072 middle students completed self-report…

This study investigates multiple-level antecedents of cyberbullying victimization among early adolescents. Data from the Health Behavior in School-Aged Children, 2009 to 2010 cohort study in the United States were used. The sample included White, Black, Latino, and Asian adolescents, ages 10-14 (N = 8481). Bivariate analysis, logistic regression,…

Student-teacher relationships that improve over time may help slow or prevent declines in student motivation. In a diverse sample of 1,274 middle and high school students from three schools, this mixed-methods study found that those who improved in developmental relationships with teachers reported greater academic motivation, and more positive…

This study compared bullying experiences between ethnic minority youth and Korean majority youth in South Korea, and examined whether the student-teacher relationship is associated with their bullying experiences. Participants comprised 148 ethnic minority students and 165 Korean majority students in Grades 4 to 11 in South Korea. Bivariate…

Although early sexual initiation has been linked to negative outcomes, it is unknown whether these effects are causal. In this study, we use propensity score methods to estimate the causal effect of early sexual initiation on young adult sexual risk behaviors and health outcomes using data from the National Longitudinal Study of Adolescent to…

Language brokering is a common practice for Latino youth with immigrant parents. Yet little is known about how youth's feelings about this responsibility contribute to the parent-adolescent relationship. In this study, we examined the longitudinal associations between language brokering attitudes and parent-adolescent closeness in a sample 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…

The effect of early adolescent alcohol use on antisocial behavior was examined at 1- and 2-year follow-up in Washington State, United States, and Victoria, Australia. Each state used the same methods to survey statewide representative samples of students ("N" = 1,858, 52% female) in 2002 (Grade 7 [G7]), 2003 (Grade 8 [G8]), and 2004…

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…