Children perform worse than adults on tests of cognitive flexibility, which is a component of executive function. To assess what aspects of a cognitive flexibility task (cued switching) children have difficulty with, investigators tested where eye gaze diverged over age. Eye-tracking was used as a proxy for attention during the preparatory period…

Distractibility is the propensity to behaviorally react to irrelevant information. Although children are more distractible the younger they are, the precise contribution of attentional and motor components to distractibility and their developmental trajectories have not been characterized yet. We used a new behavioral paradigm to identify the…

Children raised without a biological father in the household have earlier average ages of first sexual intercourse than children raised in father-present households. Competing theoretical perspectives have attributed this either to effects of father absence on socialization and physical maturation or to nonrandom selection of children predisposed…

Investigated sex differences in the motor activity level of 83 children of 5-8 years. Relative maturity was negatively related to activity level. Girls were less motorically active and more mature than boys. (RJC)

Considered variations in pubertal timing, specifically age at menarche, and association with various antecedents, including heredity; weight and weight for height; stressful life events; family relations; absence or presence of adult male in household; and psychological adjustment, in 75 premenarcheal adolescent girls. Found complex interactions…

A series of meta-analyses identified changes in parent-child conflict during adolescence and moderating factors. Results of age meta-analyses indicated that conflict rate and total conflict declined from early to mid adolescence and from mid to late adolescence; conflict affect increased from early to mid-adolescence. Puberty meta-analyses…

Examined the social structural conditions under which helpful behavior are elicited, the interrelations of helpfulness and competence across two years of middle adolescence, and whether social circumstances moderate the effects of helpfulness on competence. Found that both boys' and girls' helpfulness in the home was responsive to family need,…

Assessed effects of social risks on psychological adjustment of African American and black South African 6- year-olds. Confirmed poverty and gender as risk factors; but not single-female family headship. Found that poverty and gender posed less risk for South Africans than African Americans. Found gender and national differences in adjustment;…