Examined relations between kindergartners' behavioral orientations and features of kindergartners' subsequent relationship with first-grade teacher. Found that unique associations emerged between early antisocial behavior and less closeness; greater conflict and dependency; and asocial behavior and teacher-child dependency. Prosocial behavior was…

Examined Korean first, third, and fifth graders' judgments about authority commands regarding moral events. Found that children judged that a principal, teacher, class president, and child without an authority position have legitimacy and should be obeyed when giving morally right directives. Children gave greater legitimacy to persons giving…

Examined front and right parietal lobe theories of attention deficit hyperactivity disorder (ADHD); subjects were 10- to 14-year-old boys with or without ADHD. Found that non-ADHD boys performed better on frontal- and parietal-domain tasks than unmedicated ADHD boys, unmedicated AHDH boys had greater impairments on frontal than parietal tasks, and…

Used longitudinal study with adopted children to examine genotype-environment correlations for behavioral problems. Found that children genetically at risk for antisocial behavior were more likely to receive negative parenting from adoptive parents than children not genetically at risk. Most of the association between negative parenting and…

Studied child temperament and parental control as interacting predictors of behavior outcomes in 7- to 10-year olds in two longitudinal samples, the Bloomington Longitudinal Study and the Child Development Project. Found that resistance to control was more strongly related to externalizing in low-parent restriction groups than in high-parent…

Examined whether social cognitions forecast change in aggressive habits over the school year for 189 third through seventh graders. Found that aggression-encouraging cognitions assessed in the fall promoted aggression over the school years, but that such developments hinged on the child's sex and on initial levels of aggression and victimization.…

Examined children's and adults' ability to decode emotions in dance forms of expressive body movements and detect intensity differences in anger and happiness. Found that decoding ability exceeded chance for sadness by 4-year olds; sadness, fear, and happiness by 5-year olds; and all emotions by 8-year olds and adults. Children as young as 5…

Explored 14- and 18-month olds' ability to identify the target of the experimenter's emotional display of happiness or disgust in response to something seen or felt inside a box. Findings suggested that, regardless of age, infants used the experimenter's attentional cues to interpret her emotional signals and behaved as if they understood that she…

A 13-month study of preschoolers' conversations with friends examined development of understanding of mind and emotion and mental-state talk. Findings indicated significant and related improvements in theory-of-mind task performance and affective perspective-taking. There were qualitative and quantitative changes in mental-state references in…

Examined the association between attachment and emotional understanding in 2.5- to 6-year olds. Found that age and attachment security predicted a child's aggregate score on emotional understanding tasks. When the score was separated by valence of the emotion, attachment security and age predicted a child's score for only emotions with negative…

Three experiments examined whether preschoolers viewed outcomes of familiar causes of illness as definite or probabilistic. Findings indicated that children judged that a common cause would affect all group members the same, and believed they could definitely predict illness outcomes in a single case, contrasting with adults' variable and…

Interviewed 13- to 34-months olds about their trauma injury within days and after 6, 12, and 18 or 24 months. Found that the youngest demonstrated little verbal recall. Some who could not narrate about past events at time of injury could verbally recall target words 18 months later. Most of the oldest children demonstrated good verbal recall 2…

Examined whether chronic illness causes delays in adolescents' perceived developmental status, using annually-completed questionnaires from insulin-dependent and healthy adolescents. Found that, in first year of study, diabetic adolescents reported delays in physical maturity and an independent lifestyle compared with healthy peers. Overall…

Interviewed 16- to 23-year-old non-heterosexual women regarding development of their sexual orientation. Found that a majority failed to report at least one of following: childhood sexual orientation indicators, stability in same-sex attractions, or awareness of same-sex attractions prior to conscious sexual questioning. Lesbians reported greater…

Expands an existing nonlinear dynamic epidemic model of onset of social activities (EMOSA), motivated by social contagion theory, to quantify the likelihood of pregnancy for adolescent girls of different sexuality statuses. Compares five sexuality/pregnancy models to explain variance in national prevalence curves. Finds that adolescent girls have…