Examines the development of social networks from middle childhood to adolescence based on a longitudinal sample of 100 children. Age changes, sex differences, and the relation between network characteristics and self-perceived competence are considered. Adolescent girls' social networks are larger than boys' and are also more related to specific…

This longitudinal study examined the interrelationship between sex of the child and sex of the parent on the expression of attachment behaviors during the child's first 2 years. Special consideration was given developmental changes in the attachment structure and the relationship of attachment to cognitive development. Ten boys and 10 girls were…

Because of the sparcity of research on infants' response to social events, especially different categories of people, infants between 8 and 18 months of age were introduced to five different social events: strange adult male and female, strange 4-year-old female, mother, and self. The infants' responses indicated that approach affects stimulus…

Examines gender differences in social network (SN) development from early to middle childhood and the relation of network characteristics to school competence through mothers' reports of the SNs of 38 sons and 37 daughters. For girls, SN characteristics correspond to teacher ratings of social competence in school. (SLD)

Fixation time, smiling, vocalization, and fret/cry were recorded to obtain a complete picture of infants' responses to facial stimuli over the first year of life. Four stimuli were presented to 120 infants. Results of fixation data indicate that (1) there is a marked decrease in fixation toward facial stimuli within the first year, (2) at all ages…