Despite the growing attention to online social comparison, most studies have focused on the psycho-emotional implications of the behavior, leaving the identity implications ambiguous. Given the importance of identity development and the prevalence of social media use among emerging adults going through college transition, this study explored how…

In order to examine youth experiences in athletic activities with different characteristics, the present study explored the developmental outcomes associated with participation in three different types of sport (individual sports, team sports, and dance-type sports) as well as across six identified patterns of participation (no participation,…

Social and behavioral problems can interfere with a child's acquisition of age-appropriate skills, which may lead to antisocial behavior in adolescence and adulthood. Thus, determining how best to support positive skills during early childhood is critical. Using data from the first three phases of the NICHD Study of Early Child Care and Youth…

This study examined whether the effects of employment-based policies on children's math and reading achievement differed for African American, Latino and Caucasian children of welfare receiving parents, and if so, why. Two kinds of employment policies were examined: "education-first" programs with an emphasis on adult education and job…

Cross-age peer mentoring programs, in which teenagers mentor younger children, have proliferated in recent years, yet there is disagreement about the effectiveness of such programs. This study tested whether teen mentors' attitudes about children interact with their mentees' characteristics to moderate outcomes of cross-age peer mentoring. The…

The current study examines the social and behavioral development of school-age children with different histories of overweight onset. Eight thousand children from the Early Childhood Longitudinal Study-Kindergarten Cohort (ECLS-K) participated. Three groups of children were identified for analysis: (1) those who were persistently overweight from…