In this study of the origins of individual differences in theory of mind (ToM), the Environmental Risk (E-Risk) Longitudinal Twin Study sample of 1,116 sixty-month-old twin pairs completed a comprehensive battery of ToM tasks. Individual differences in ToM were striking and strongly associated with verbal ability. Behavioral genetic models of the…

Cocaine is a major problem in the rural South, but knowledge is limited regarding the impact on African American populations. Purpose: This study of 18-39-year-old black drug users assessed perceptions of contributing factors to drug use and possible interventions. The study design was qualitative-descriptive, utilizing 4 focus groups with 5 rural…

Past research suggests that adolescents whose parents are violent toward one another should be more likely to experience dating violence. Having friends in violent relationships also may increase the odds of dating violence. The authors examined which antecedent, friend dating violence or interparental violence, if either, is more strongly…

This introduction sets the stage for the themed issue. It describes the ambiguities inherent in the interpretation of the literature on compositional and peer effects and the genesis of the project. The balance of the introduction then describes the approach adopted to search for peer effects. First, there is a brief outline of the Barr and…

Precursors of adolescent sexual risk taking were examined in a multiethnic sample consisting of 443 children (51% girls) of National Longitudinal Survey of Youth participants. Respondents were 12-13 years old in 1994 and 16-17 in 1998. Controlling for demographic and contextual factors, self-regulation--but not risk proneness--was significantly…

Social withdrawal is one symptom displayed by students categorized as "internalizers," who may also experience anxiety and depression. These are the quiet, invisible students. Internalizing disorders can negatively affect a student's academic performance, physical health, future psychological adjustment, and employment opportunities. Supportive…

The current study provides new information on the etiology of adolescent problem behaviors in African American youth by testing the importance of known predictors, namely parenting measures (monitoring, support, and communication), peers, and neighborhood characteristics across rural and non-rural developmental contexts. More specifically, the…

Friends play a significant role in mental and physical health; however, individuals with Down syndrome and other developmental disabilities, even those who are included in general education programmes, have not developed friendships as hoped. After a decade of inclusion and structured school programmes to facilitate friendships, many parents…

This paper assesses the magnitude of the non-indigenous/indigenous test-score gap for third-year and fourth-year primary school pupils in Peru, in relation to the main family, school and peer inputs contributing to the test-score gap using the estimation method of feasible generalized least squares. The article then decomposes the gap into its…

Background: Research into school bullying has a long tradition but a rather narrow scope. Many prevention programmes have been designed, but despite extensive investigation, most studies suggest that bullying is not decreasing. There is something paradoxical in this phenomenon. In order to have any real impact on some phenomena, thorough…

Whereas traditional criminological theories treat juvenile delinquency largely as a reactive and expressive behavior that only seldom leads to specialized criminal offending or a criminal career, this article proposes an alternative classification of offenses that accounts for the difference between youthful reactive conduct and specialized…

This paper outlines early findings from the Tasmanian-based Social Norms Analysis Project (SNAP). The Social Norms model is presented as a theoretically informed, evidence-based model for reducing alcohol-related harm in youthful populations by utilising the complex and often positive contributions peer groups make to adolescent health and…

The authors examine how peer relationships influence students' academic success. After defining peer groups, the article considers the ways in which students' peer networks facilitate or inhibit access to academic resources. The authors argue that the composition and purpose of a peer group influences academic achievement and students' likelihood…

The Indiana Department of Education, at the direction of Phyllis Lewis, commissioned the National Association of Peer Programs (NAPP: formerly known as the National Peer Helpers Association) and the authors listed above to develop a rubric for peer helping programs. Development of the rubric began with a review of the NAPP Programmatic Standards…

This research examines the effects of school racial and ethnic composition on students' academic achievement in the U.S. using the National Longitudinal Study of Adolescent Health and hierarchical linear models. This analysis includes Hispanics, which stands apart from other research in this area that has traditionally focused on only Black and…