Compared adjustment of 30 young adults who had a stable, reciprocal best friend in fifth grade and 30 who did not. Found that lower peer rejection uniquely predicted overall life status adjustment. Friended preadolescents had higher general self-worth in adulthood, even after controlling for perceived preadolescence competence. Peer rejection and…

Fifth through eighth graders completed self-reports in response to pager signals received over one week and again four years later. Responses indicated that thinking about the opposite sex occurs earlier than spending time with the opposite sex alone and that both increase over time. Girls spent more time with opposite sex and more time thinking…

Assessed the possible confounding of preadolescents' temperament as a predictor of psychological adjustment, using confirmatory factor analysis (CFA) and expert ratings. CFAs demonstrated that temperament could be reliably measured after eliminating overlapping items. Negative emotionality and impulsivity were negatively related to symptom…

Compared pretend play enactment, negotiation, internal state language, and sibling relationship quality in 40 kindergartners with older or younger siblings. Found that frequent pretend play dyads used more high-level negotiation and internal state language than infrequent pretend dyads. Friendly relationship quality was negatively related to…

Two studies tested a model relating social competence to social support and child-parent attachment for Head Start children. Results supported the conjecture that social competence should be viewed as hierarchically organized. A model consistent with causal pathways from attachment security to support networks and social competence, and from…

Examined the experiences provided by biological fathers and other men for 111 third and fourth graders in unmarried-mother families. Found that fathers' warmth and control related to better academic achievement and more prosocial behaviors toward peers. Girls and Black children were more positively affected by relations with fathers and father…

Evaluated effects of Chicago Child-Parent Center and Expansion Program on 559 low-income, inner-city African American children. Found that program participation for two or three years after preschool and kindergarten was associated with higher reading achievement up to seventh grade and lower cumulative grade retention and special education…

Examined mother-adolescent congruence in reports of adolescent sexual behavior and communication about sex in 745 African American adolescents (ages 14-17). Found that adolescent perceptions and reports were more predictive of adolescent sexual behavior than maternal reports. Mothers underestimated their teens' sexual activity, and teens…

Examines the relationship between hypnosis and human development. Defines hypnosis within a communications framework, and identifies essential features of hypnosis in the communicative exchanges of the first months of life; this forces a reconsideration of the understanding of the ontogenesis of hypnosis. Identifies four key features of hypnosis,…

Examined differences in acoustic characteristics of cries, both early and late, within a prolonged crying bout. Results indicated that late cries appeared to result from a smaller number of factors than did early cries. Results support notions that crying bouts settle into a regular cry with acoustic features matching a theoretical model of cry…

Three experiments manipulated 3-month-olds' attention to different components of a training display and assessed the effect on retention. Results suggested that increasing or decreasing attention to an item during encoding produces a corresponding increase or decrease in memorability. Findings were consistent with a levels-of-processing account…

Three experiments examined the relation between language acquisition and other symbolic abilities in 18- and 26-month-olds. Found that 18-month-olds spontaneously interpreted gestures, like words, as names for object categories. At 26 months, they spontaneously interpreted words as names and novel gestures as names only when given additional…

Used visual preference technique to examine infants' (mean age 14.8 months) comprehension of two novel words for images of novel objects. Found that infants looked preferentially at images that matched an auditory stimulus and that infants showed learning after about 12 presentations of new words. Results support previous demonstration of rapid…

Two studies demonstrated dissociation between preschoolers' understanding of pictorial and mental representations. Results showed that false picture tasks were significantly easier than false belief tasks. There was no correlation between performance on the two. Children were trained on false belief, false picture, or number conservation tasks;…

Two experiments examined 4- to 5-year-olds' acquisition of family-resemblance categories for fictitious animals. Results showed that children who performed theory-guided learning were more successful at making feature/category associations than children who performed similarity-guided learning and categorized attributes significantly better than…