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…

The pressures on young athletes today, many of them brought on or exacerbated by parents, drive young athletes to attain perfection and win by any means necessary. For the young athlete, the challenges of learning how to balance schoolwork, social life, family time, and sports, not to mention other interests they might have, are far more intense…

Studies on the acting white hypothesis--the premise that black students purposefully do poorly in school and on standardized tests because of racialized peer pressure--to explain the black-white achievement gap have not been able to negate the fact that a "burden of acting white" exists for some black students, even though it is not prevalent…

This article discusses two Cornell research studies on the prevalence of self-injury or "cutting" in today's youth, led by Janis Whitlock, and presents historical perspectives on the issue. The first study randomly surveyed 3,069 undergraduate and graduate students at Cornell University and Princeton University. Data showed that 17 percent of the…

This study examined Vygotsky's theoretical notion that play creates the zone of proximal development by investigating the effects of peer interaction within the context of constructive play with blocks. The authors used the Play Observation Scale (Rubin, 1989) to observe 100 four-year-olds in naturalistic settings. Forty-eight children were…

As some educators try to eradicate homophobia among their students, the literature on how classroom interventions lessen homophobia has netted inconsistent results. Most studies have found modest curriculum effects, while some have not. In addressing these inconsistencies, this study investigates the way some mitigating factors may either augment…

Laurie Chassin focuses on the elevated prevalence of substance use disorders among young offenders in the juvenile justice system and on efforts by the justice system to provide treatment for these disorders. She emphasizes the importance of diagnosing and treating these disorders, which are linked both with continued offending and with a broad…