Students have difficulty learning fractions, and problems in understanding fractions persist into adulthood, with moderate to severe consequences for everyday and occupational decision-making. Remediation of student misconceptions is hampered by deficiencies in teachers' knowledge of the discipline and pedagogical content knowledge. We theorized…

The Monitoring the Future study has provided the nation with a window into the important, but largely hidden, problem behaviors of illicit drug use, alcohol use, and tobacco use. It has provided a clearer view of the changing topography of these problems among adolescents and adults, a better understanding of the dynamics of factors that drive…

Across the Nation, teen drug use is down 23 percent since 2001 among 8th, 10th, and 12th graders, reflecting reductions in the use of nearly every drug. However, data from 2005 and 2006 indicate that there are still some areas of concern for Hispanic youth. Hispanic 8th graders have a higher rate of illicit drug use than other teens in the same…

Communities are critical arenas for adolescent development. This study uses mixed methods to assess contextual correlates to community connectedness in 8th, 10th, and 12th grade youth. The survey examined the relationship between community connectedness and four developmental supports: safety, community monitoring, creative outlets, and meaningful…

This study explored the combined influences of daily activities and autonomy in activity engagement on adolescent daily positive and negative moods. Ecological momentary assessments (EMA) were used to obtain information about 8th- and 10th-grade students' (N = 517) mood, activities, and situation throughout the day. Participants responded to…

Monitoring the Future (MTF), now in its 35th year, has become one of the nation's most relied-upon sources of information on changes taking place in licit and illicit psychoactive drug use among American adolescents, college students, young adults, and more recently, middle-aged adults. During the last three and a half decades, the study has…

Recent theory on social dominance suggests that aggressive individuals should be socially successful if they also display prosocial behavior. The combination of coercive and prosocial strategies of resource control (i.e., bistrategic control) is thought to facilitate hierarchy ascension. Adolescents (N = 929, grades 7-10) were queried about the…

This report describes the development of grade norms for timed-writing performance in two modes of writing: persuasive and descriptive. These norms are based on objective and automatically computed measures of writing quality in grammar, usage, mechanics, style, vocabulary, organization, and development. These measures are also used in the…

The present study examines the correlates of indirect and verbal victimization by peers at school. The research is based on a nationally representative sample of 16,604 students in grades 7 through 11 in 324 schools across Israel. Self-administrated anonymous questionnaires were completed during class. Hierarchical linear modeling was used to…

The present study examines how exposure to relational aggression at school is associated with adolescents' perceptions of, and participation in, a hostile school environment. Participants were 1,335 African American and European American adolescents in grades 7 through 12 (52% female, 49% African American). Results indicate that exposure to…

This study examined the reasons that four high school students who had previously refused to attend school willingly attended an alternative K-12 school for students with special needs. The two research questions that framed this study were (a) why do students who refused to attend their regular schools willingly attend Brookfield Park? and (b) in…

The third in a series of reports from P/PV's three-year study of the role Boys & Girls Clubs play in the lives of the youth they serve, "Making Every Day Count" examines how Club participation is related to youth's positive and healthy development in three outcome areas identified by Boys & Girls Clubs of America as central to its mission: good…

A social developmental framework was applied to test for the socialization of homophobic attitudes and behavior within adolescent peer groups (Grades 7-11; aged 12-17 years). Substantial similarity within and differences across groups were documented. Multilevel models identified a group socializing contextual effect, predicting homophobic…

This article describes both normative changes and individual differences in the gender composition of girls' and boys' friendship networks across adolescence and predicts variations in these changes. It also examines changes in the characteristics (context, age difference, closeness, and support) of same- and other-sex friendships in the network.…

In this study, the authors conducted a mixed analysis of student perceptions of their best high school teachers. The sample of 257 preservice teachers from a College of Education in California described their best high school teacher. From their descriptions, qualitative analysis through the method of constant comparison yielded eight themes:…