Many prosocial behaviors involve social risks such as speaking out against a popular opinion, bias, group norm, or authority. However, little is known about whether adolescents' prosocial tendencies develop over time with their perceptions of social risks. This accelerated longitudinal study used within-subject growth-curve analyses to test the…

Objective: Adolescence is a vulnerable age for emerging mental health problems, but also a time at which the foundations for a healthy lifestyle are established. Attitudes towards mental health problems and the ability to recognise them can be affected at this age. The aim of this study was to describe a psychoeducative intervention aimed at…

This research initiative aimed to describe and analyze U.S. youth participation in tennis. The major goal was to better understand how tennis and other popular youth sports impact teen well-being. The findings discussed in this report provide evidence that tennis participation positively influences the lives of U.S. adolescents. Overall, the data…

This is the executive summary for the report, "How Tennis Influences Youth Development." This research initiative aimed to describe and analyze U.S. youth participation in tennis. The major goal was to better understand how tennis and other popular youth sports impact teen well-being. The findings discussed in this report provide…

In the middle of the 20th century, there was a shift from a skills deficit approach to a positive approach, focused on promoting assets and individual strengths. The role of social-emotional competences became salient. School is a privileged arena for universal and selective prevention interventions that can help pupils in raising their competence…

This book paints a portrait of adolescent psychology in 4 major regions: Africa/the Middle East, Asia, the Americas, and Europe. Featuring 24 revised and updated chapters from the "International Encyclopedia of Adolescence" (2007), readers are introduced to the way the majority of the world's adolescents actually live. Most contributors…

This study examined gender differences in trajectories of delinquent behaviors over a 6-year period in adolescence and differential outcomes of these diverse developmental pathways. Participants were 754 children who were part of a longitudinal study of the development of early starting conduct problems. Four trajectory patterns were identified…

Background: Whereas much attention has been focused on adolescent risk behaviors such as substance use, much less has been devoted to self-injury in the general adolescent population. Purpose: This study had two purposes: (1) describe the prevalence of self-injury among early adolescents in the general middle school population, and (2) identify…

Teens typically fail to use contraceptives consistently, which contributes to high rates of unintended pregnancy and sexually transmitted infections (STIs) among this age group. Existing research has focused primarily on how teens' own characteristics are related to contraceptive use, but has paid less attention to how the characteristics of…