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…

Examined influence of perceived self-efficacy for affect regulation with older adolescents. Found that self-efficacy to regulate affect related to high efficacy to manage academic development, resist social pressures for antisocial activities, and engage with empathy in others' emotional experiences. Perceived self-efficacy for affect regulation…

This study explored judgments and reasoning of Chinese 13- to 18-year-olds regarding making decisions involving children in peer, family, and school contexts. Findings indicated that judgments and reasoning about decision-making varied by social context and by the decision under consideration. Evaluations of procedures became more differentiated…

Longitudinal studies in two countries investigated impact of father absence on girls' early sexual activity (ESA) and teenage pregnancy. Findings indicated that greater exposure to father absence strongly related to elevated ESA and adolescent pregnancy risk. Elevated risk was not explained (U.S. sample) or only partly explained (New Zealand…

Four experiments tested the hypothesis that the importance of linguistic labels for young children's conceptual organization stems from a privileged processing status of auditory input over visual input. Findings indicated that when auditory and visual stimuli were presented separately, 4-year-olds were likely to process both kinds of stimuli,…

Examined effects of time-limited welfare on children ages 5- to 17-years at a 4-year follow-up. Found that effects were moderated by families' risk of long-term welfare dependency. Found few effects for children of parents most likely to reach the welfare time limit. Found consistent negative effects for children of parents with the largest…

Examined longitudinal relations of observed parental warmth and positive expressivity and children's effortful control and ego control with children's high versus low emotional expressivity. Found that moderate child expressivity related to high effortful control. Children's ego overcontrol mediated relations between parental warmth/positive…

Three experiments in which photo or video presentations could guide one's search for a hidden object showed that under certain circumstances even 24-month-olds displayed representational insight. The first two experiments replicated earlier findings of chance performance across 4 trials, with 24-month-olds performing above chance in 3 of 4…

Observed home interaction between parents and 2- and 4-year-olds at Time 1 and 2 years later. Found that parent mental state talk to children varied by child's age, context of talk, and parent gender. Four-year-olds with older siblings produced and heard more cognitive talk and less desire talk than children without older siblings. Time 1 family…

This study examined how children's play varied as function of child's sex, play partner's sex, and whether they played in dyads or groups. Observation data revealed that boys' same-sex play was more active-forceful, farther from presence of adults, and more stereotyped than girls', a pattern exaggerated in groups. Mixed-sex play was more likely…

Examined nonshared environmental (NSE) influences on twin preschoolers' behavior independent of genetics. Found that within-pair parenting differences correlated with monozygotic differences in behavior. For the extreme 10 percent of the parenting-discordant and behavior-discordant distributions, average NSE effect size was 11 percent, suggesting…

Two experiments examined the communicative bases of preschoolers' object appearance-reality (AR) errors. Found that AR performance correlated positively with performance on a control test with the same discourse structure but nondeceptive stimuli, and on a naming test. Overall findings indicated that the discourse structure of AR tests elicits a…

Investigated the effects of participation in the Title I Child-Parent Centers on substantiated reports of child maltreatment for 1,408 children. Found that 913 preschool participants had significantly lower rates of court petitions of maltreatment by age 17 than 495 children who participated in alternative kindergarten interventions. Four- to…

This study examined 2,570 Chinese characters taught in Chinese elementary schools. Findings indicated that visual complexity, phonetic regularity, and semantic transparency of characters increased from early to later grades. Characters introduced in first/second grade contained fewer strokes but were less likely to be regular or transparent than…

Examined preschoolers' suggestibility when initial beliefs about an object's identity were contradicted by experimenter's suggestion. Found that subjects were good at accepting the suggestion only when the experimenter was better informed than they. Children were least accurate at reporting whether their final belief was based on what they were…