This longitudinal study examines individual differences in the tendency to initiate (N = 4,612) and escalate (N = 2,837) smoking when adolescents gain a best friend who smokes. Potential moderating factors include self-esteem, depression, problem behavior, school and family bonds, and household access to cigarettes. In addition to acquiring a…

This study examined the prediction of different forms of adult aggression in 2 countries from child and adolescent aggression. It was based on 2 longitudinal projects: the Jyvaskyla Longitudinal Study of Personality and Social Development (JYLS; N = 196 boys and 173 girls) conducted in Finland and the Columbia County Longitudinal Study (CCLS; N =…

This study examined (a) growth curves of youth participation in sports, performance and fine arts, and youth clubs throughout the high school years and (b) the associations between a series of predictors and the initial participation rates and growth over time. The predictors included individual, friend, and family factors. The moderating effect…

Adolescence is frequently described as a period of pervasive self-consciousness, but an age-related peak in adolescence is not consistently obtained, and higher self-consciousness in girls is frequently obtained but not predicted by theoretical accounts. Two cohorts of adolescents (N=393), initially assessed at 13 and 15, completed public and…

Findings are presented from an ecologically grounded, longitudinal study of 206 urban, ethnic minority adolescents that used hierarchical linear modeling to examine: (1) individual trajectories of change in adolescents' perceptions of general and closest same-sex friendship quality from middle to late adolescence; (2) the effects of gender and…

Examined the nature and correlates of parents' expectations about adolescent sons' behavioral autonomy in a longitudinal study of 81 boys and their families, conducted when the boys were in 6th and 10th grade. Found that fathers' timetables for privileges at preadolescence predicted sons' midadolescent academic and social outcomes four years…

Examined intraindividual and interindividual differences in self-esteem among 142 rural adolescents during a four-year period encompassing the transition to high school. Cluster analysis identified three distinct, divergent trajectories of self-esteem change from early to middle adolescence: (1) consistently high; (2) small increase; and (3)…

This study examined contributions of demographic, individual-level, and contextual factors on changes in perceived quality of general and closest same-sex friendships among 114 Asian American, Black, and Latino adolescents from low-income families. Findings suggested a compensatory model of relationships and drew attention to the importance of…

Studied families in the Iowa Youth and Family Project for the social and developmental pathways by which adolescents approach decisions to relocate. Found that lack of socioeconomic opportunity, relatively weak and declining ties to family and religious community, and strong educational prospects were potent factors. Also found that plans to…