This study examined the increase in salivary cortisol from midmorning to midafternoon in 151 children (3.0-4.5 years) in full-time home-based day care. Compared to cortisol levels at home, increases were noted in the majority of children (63%) at day care, with 40% classified as a stress response. Observations at day care revealed that intrusive,…

This study examined whether the affect children feel toward peers would influence children's social-cognitive evaluations and behaviors. The sample consisted of 209 fifth-grade children (11- to 12-year-olds; 119 boys and 90 girls). For each child, 3 target peers (liked, disliked, and neutral) were identified via a sociometric nomination procedure.…

This study evaluated the intent attributions and feelings of emotional distress of relationally and physically aggressive children in response to instrumental and relational provocation contexts. Findings indicated that physically aggressive children exhibited hostile attributional biases and reported relatively greater distress for instrumental…

Relations among hormone levels, emotional dispositions, and aggressive attributes were examined in 56 boys and 52 girls, aged 9 to 14 years. (PCB)

Elementary school children's parents responded to video-taped sequences portraying either an overactive, an underactive, or an average-active child. Generally supported hypotheses: (1) overactive children would be punished more severely than other children; (2) the label emotionally disturbed'' would influence adult responses, and (3) affect and…

This study examined relations of reactive versus proactive aggression to second-graders' anger after losing in a board game to a cheating confederate. Found that reactive aggression, but not proactive aggression, was positively related to skin conductance reactivity and observed angry nonverbal behaviors, both at an aggregated level and in terms…

Examined the relationship between 41 preschool children's peer competency and the exchange of reciprocal negative affect displays during physical play with parents. Found that fathers who typically responded to their children's negative affect displays with negative affect of their own had children who shared less, were more aggressive, and…

Two studies examined the development of display rules for anger and the relationship between the use of display rules for anger and aggressiveness as rated by school peers. Findings indicate that the phenomenon of display rules for anger is complex and depends on the way display rules are defined and the age and gender of the subjects. (GLR)

Examined the interrelations of group contextual factors and the occurrence of aggressive behavior in 22 experimental play groups of 7- and 9-year-old African American boys. Found that negative affect, high aversion behavior, high activity level, low group cohesion, and competitiveness were related to the occurrence of aggressive behavior. (MDM)

Investigated sociometric status, aggression, and gender differences in African American second-graders' expression of anger, happiness, and sadness during a competitive game. Found that rejected children expressed more facial and verbal anger than average-status children and more nonverbal happiness, but only during turns that were favorable to…