Investigated whether friendships with deviant peers would be related negatively to the emotional and behavioral adjustment of 305 adolescents, 13 years of age. Found that adolescents with deviant friends were more delinquent than those with no mutual friends or nondeviant friends, and showed similarly problematic depression levels as friendless…

Examined predictors of body image in preschool children, including models, verbal messages, physiological factors, and experience of competence related to body image. Data from child interviews and parent and teacher questionnaires indicated that there were no gender differences in children's body image. Messages from the mother to "be bigger"…

This study examined whether child, parental, and socioenvironmental factors predict disruptive school behavior two years later. Data from a sample of 10-to 12-year-old youths, including 289 African American, 183 Hispanic/Latino, and 335 non-Hispanic white youths from the National Longitudinal Survey of Youth were analyzed. Findings indicate that…

Developmental changes were examined in the associations among physical and relational aggression, and sociometric and perceived popularity based on peer nominations. Participating in the longitudinal study were 905 children (440 girls, 465 boys) from ages 10 to 14. Associations between the forms of status and between the forms of aggression…

Although the study of delinquency has previously focused on identifying individual, family, peer, and social risk and protective factors, little empirical research has studied cultural factors and their relations to delinquency. In a large community sample of 329 Chinese, Cambodian, Laotian/Mien, and Vietnamese youths, individualism was positively…

To assess predictions from social identity development theory (SIDT; Nesdale, 2004) concerning children's ethnic/racial prejudice, 197 Anglo-Australian children ages 7 or 9 years participated in a minimal group study as a member of a team that had a norm of inclusion or exclusion. The team was threatened or not threatened by an out-group that was…

Studies of criminal careers reveal several possible factors associated with persistent offending. This analysis examines the part that criminal justice system involvement plays in persistent offending. Seven waves of data collected on 153 boys as part of the Iowa Youth and Families Project were used to test a structural equation model…

In this study, the authors investigated a social marketing intervention to increase the use of bicycle helmets on a university campus in the southeastern United States. Focus groups of students developed a bicycle helmet program slogan and logo (ie, "The Grateful Head"). The authors trained student bicyclists who already used helmets (n…

Using data from a probability sample of 4,987 adolescents, we examine the degree to which closeness to mother, closeness to father, parental support, and parental monitoring buffer the relationship between peer drug use and adolescent marijuana use. The relationship between peer drug use and adolescent marijuana use was attenuated by both…

Neighborhood conditions are related to children's externalizing behavior, although few processes that help explain this association have been identified. With data from 189 primarily low-income Anglo and Mexican American families, we tested a stress process model that included 3 potential mediators of this relationship. The results showed that…

Although bullying among Japanese youth is a current major concern, psychosocial influences on bullying are not fully understood. The purpose of this study was to identify the psychosocial factors associated with physical, verbal, and indirect bullying among Japanese adolescents. Junior high school students between seventh and ninth grade (N =…

This paper estimates the effect of students' background characteristics on the academic outcomes of their college roommates. It uses data from four classes of students at Wellesley College, where roommate assignment is credibly random, conditional on student responses to a housing preference form. In linear specifications, there are no peer…

Few studies have examined the predictors of substance use for ethnic minority adolescents. The current longitudinal study investigated whether factors predictive of substance use for Caucasian adolescents were also predictive for African American adolescents. Results indicated which predictors of substance use actually differ across African…

The purpose of this study was to assess the nature of bullying on the school bus. Videotapes were used to identify occurrences of bullying on buses of elementary school students. Incidents were reviewed for forms of bullying, fullness, presence of friends, and severity of acts. Results indicated that approximately two incidents occurred per bus…

This chapter explores the dynamics and processes of peer group influences in learning settings from a social constructivist perspective. A two-tiered model of peer influences is presented, in which environments for learning are linked with mechanisms and processes most likely to underpin student learning. A distinction is drawn between more…