Investigated the effects of pubertal timing, demographics, family processes, and leisure activities on the timing of first sexual experience among adolescents (N=702). Higher levels of parental monitoring predicted later initiation of sexual experience for most participants. Higher levels of risky leisure also predicted earlier first sexual…

Used mothers' generalized beliefs about adolescents to predict mother's expectations for her own sixth- or seventh-grader's adolescent years. Found that generalized beliefs predicted mother's expectations even after accounting for the adolescent's current attributes. Greater beliefs that adolescents are upstanding/prosocial predicted greater…

Examined role of pubertal and social transitions in emergence of gender differences in depressive symptoms. Found that differences emerged during eighth grade. Seventh-grade pubertal status related to depressive symptoms. Recent stressful life events related to increased depressive symptoms. Early-maturing girls with higher levels of initial…

Risk factors for early adolescents' (700 between the ages of 10 to 13) delinquency were compared between groups of children high and low in childhood adversities. The samples represented young people from the two former Germanies (200 from former East and 500 from West Germany) who were interviewed in person. Additional information was gathered…

Investigated relation between pubertal timing and alcohol use among junior high school students in Norway who were followed up 2 years later. Found that early timing of puberty correlated with number of intoxication incidents and number of units consumed on each occasion and, to a lesser degree, with frequency of alcohol use. Correlations were…