Examined links between parental knowledge and adolescent delinquent behavior for correlated rates of developmental change and reciprocal associations from age 14 to 18. Found that parent knowledge was negatively correlated with delinquent behaviors at age 14 and knowledge increases over time were negatively correlated with increases in…

Interviewed 120 early, mid, and late adolescents of lower-class Chinese families to examine adolescent-parent conflict. Found that conflicts were primarily with mothers, of moderate frequency and severity, and occurred over everyday issues. Adolescents wanted greater autonomy in decision making than their parents granted them, but parents' views…

Studied relationship between adolescents' sleep/wake habits and daytime functioning. Found that self-reported total sleep times decreased from age 13 to 19 years. Struggling or failing students obtained less sleep, went to bed later, and had greater weekend delays of sleep than those with better grades. Students with inadequate sleep reported…

Examined impact of experimentally altering mothers' style when discussing sexuality and AIDS with adolescent children. Found that intervention group mothers reduced their amount of speaking, asked more open-ended questions, acted less judgmental, and discussed dating and sexuality more than did control group mothers. Intervention group adolescents…

Used a person-centered analytic strategy with data from Youth Development Study to describe configurations of time use through the high school years. Found that students highly engaged in multiple domains tended to remain so across grade. Students focused on one or two domains frequently changed commitments, school plans, grade point average,…

Examined technical and adaptive competence in coping among 97 African-American adolescents with learning disabilities. Findings indicated that short-term, reactive, technical competence was a better predictor of feelings of efficacy, and longer-term, developmental adaptive competence was a better predictor of behavioral problems. Gender subsample…

Compared adopted and nonadopted adolescents across variety of measures. Found that adopted adolescents were at higher risk in all domains examined, including school achievement and problems, psychological well-being, and physical health. Effect sizes for group differences were larger for males, younger or older adolescents, Hispanics or Asians,…