This study introduces a social context model within which peer acceptances of prosocial-leadership, aggression, and social withdrawal were examined as functions of the contextual norms of these behaviors. The major postulate of the model is that the extent to which a behavior permeates a social context facilitates peer acceptance of the behavior.…

Children (N = 76; ages 5-10 years) participated in a study designed to examine perceptions of gender discrimination. Children were read scenarios in which a teacher determined outcomes for 2 students (1 boy and 1 girl). Contextual information (i.e., teacher's past behavior), the gender of the target of discrimination (i.e., student), and the…

Examined effects of early physical maturation and accelerated pubertal changes on symptoms of major depression among 639 African American adolescents. Found that for girls, early maturation was consistently associated with elevated levels of depressive symptoms. For boys, early maturers showed elevated depression only at age 11, with symptoms…

Examined free recall narratives of younger and older children and their parents independently interviewed about injuries requiring hospital emergency treatment. Found that mothers' narratives were more cohesive and coherent than fathers', and girls' narratives differed from boys' in parallel ways. Parent and child measures were correlated;…

Examined autonomy and individuation levels within financial, residential, romantic, and family formation domains among 17- to 27-year-olds in a community-based longitudinal study. Found that subgroup differences related to family socioeconomic status, parental divorce, gender, or race were not generally attributable to educational enrollment. Both…

Examined children's and adolescents' ability to identify male sweat and other odors and their rating of odors for liking. Found that only female adolescents could identify and disliked male sweat. When cued about odor identity, both male and female adolescents disliked male sweat more than children. Concluded that dislike for male sweat odor may…

Data from 6 sites in 3 countries were examined to determine developmental course of physical aggression in childhood and to analyze linkages to violent and nonviolent offending outcomes in adolescence. Findings indicated that among boys, chronic physical aggression during elementary school years increased risk for continued physical violence and…

Investigated potential differences between nonreferred children with and without callous-unemotional (CU) traits. Found that children with conduct problems, irrespective of CU trait presence, tended to have significant problems in emotional and behavioral regulation. CU traits, irrespective of conduct problem presence, related to a lack of…

Examined longitudinally the relationship between biological and social risk factors and aggressive behavior patterns among high-risk Australian adolescents in three groups: early-onset persistent aggression, adolescent-onset aggression, and nonaggressive behavior groups. Findings revealed that the interaction of biological and social risk factors…

Examined developmental trajectories toward violence over middle childhood and children's response to a universal school-based preventive intervention. Found that three growth patterns--positive linear, late acceleration, and gradual deceleration--characterized the children's trajectories, and these trajectories varied meaningfully by child…

Investigated the family as a context for gender typing of adolescent science achievement. Findings indicated no child gender or grade-level differences in science-related grades, self-efficacy, or interest. However, parents were more likely to believe that science was less interesting and more difficult for daughters than sons. Parents' beliefs…

This study examined preschoolers' performance on an observation task and a search task involving the invisible displacement of an object. Findings indicated that in the observation task, there was significantly longer looking to impossible than to possible outcomes among all children. Most 3-year-olds, but significantly fewer 2.5-year-olds,…

This study surveyed ninth- and eleventh-graders' evaluations of social exclusion based on social group membership. Responses indicated that participants found exclusion less wrong than denying resources, and used fewer moral and more conventional reasons to justify judgments. Participants relied on their group knowledge or stereotypes in…

This study examined toddler precursors of preschoolers' externalizing behaviors. Findings indicated that boys initiated more conflictual-aggressive interactions as toddlers and had more externalizing difficulties 2 years later, yet girls' (not boys') conflict-aggressive initiations at age 2 related to subsequent externalizing problems. The…

Investigated the relationship between sex hormones and spatial performance among adolescents treated with sex steroids for delayed puberty. Found that spatial performance varied according to gender but did not vary with levels of actively circulating sex steroids. Reviewed physiological mechanisms, developmental periods, and past empirical work…