This study examined the power of nonshared environment to differentiate adolescent monozygotic twin development and the extent to which this power varied across social structural contexts. Findings indicated that differences in maternal closeness, teacher bonding, and religious participation differentiated twins on emotional distress. Family…

Examines the stability of individual differences in test anxiety and learned helplessness of 82 children in third grade and later in fifth grade. Results indicate that teacher reports of helplessness had the strongest and most consistent relation to concurrent achievement and to achievement test scores two years later. (RJC)

Quantitative growth curve models for estimating individual developmental functions from various types of longitudinal data are discussed in the context of investigator assumptions and research design characteristics. Linear and nonlinear models that estimate growth curves are illustrated, and contrasted when they are fit to speech development…

Eye movements of 12-week-old infants were recorded in a visual encoding experiment. Results showed that infants who encoded more slowly scanned less extensively over the stimulus and engaged in prolonged fixation. An experiment with two-week olds showed significant age differences in the manner of visual scanning. (BC)

Reviews evidence on reliability and validity of the Children's Behavior Questionnaire (CBQ); presents CBQ data on structure of temperament in childhood. Factor analyses indicate three broad dimensions of temperament: extroversion/surgency, negative affectivity, and effortful control. This factor structure also appears in ratings of children in…

Evaluated effects on children in Bosnia and Herzegovina of a 5-month psychosocial intervention program of weekly group meetings for mothers. Found that although all participants were exposed to severe trauma, their distress varied considerably. The intervention program had a positive effect on mothers' mental health, children's weight gain, and…

Argues that extant research assessing relations between contextual factors and psychological disturbance has confused two different roles of context. Suggests that environmental factors are nonspecific stressors and elicit psychopathology, with specificity of expressed psychopathology governed by individual differences, and that context is…

This study examined demographic and individual difference variables that predicted level of Brazilian adolescents' prosocial moral judgment and self-reported prosocial behavior; it also tested mediating or moderating relations among predictors. Findings generally were consistent with contention that tendency to take others' perspectives and to…

Three studies replicated and extended Dweck's findings regarding young children's responses to challenging achievement situations. Findings indicated that a composite of cognitive, behavioral, and affective helplessness indices at kindergarten age predicted helplessness 1 and 5 years later, above and beyond gender and kindergarten task ability.…

Examined 3-year-old boys' pride and shame reactions to success and failure on a "rigged" achievement situation. Found that pride and shame were related to task difficulty and success versus failure but unrelated to temperament after one year. Children whose parents were more positive in previous parenting displayed less pride and…

Examined Swedish children's inhibition behavior using mothers' and psychologists' ratings of inhibition at age 18 and 24 months to predict later ratings through age 16 years. Prediction was more reliable for children rated as very inhibited or very uninhibited than for those in nonextreme group through age six. Only for inhibited girls did early…

Hypothesized that individual differences in 81 sixth-grade boys' self-restraint would serve as a mediator between family factors in preadolescence and sons' delinquent behavior 4 years later. General family functioning at preadolescence, independent of other scores, predicted boys' level of self-restraint four years later. (MDM)

Used a longitudinal sibling research design and a large, nationally representative sample of 15- to 22-year-old siblings to study shared and unshared environmental influences on delinquency. Although no unshared family environmental influences were found for sisters and mixed-sex siblings, they may have existed for brothers. Data suggested…

Used time-lapse video to record sleep/wake states of preterm infants for three 24-hour periods at 33 and 35 weeks conceptional age. Found that very-low-birthweight preterm infants showed marked stability and developmental change in the organization of sleep/wake states from a very early age, and their states were related to demographic variables…

Examined correlates of parents' knowledge about their children's daily experiences. Found between- and within-family differences as a function of mothers' work involvement, sibling composition, and children's and adults' personal qualities. Fathers knew more when mothers worked longer hours. Parents knew more about younger than older offspring.…