Development in general, and sex-role behavior in particular, is influenced by both biological and environmental factors. However, the coalescence of these factors around the child's growing social cognitive abilities is the critical factor in the development of sex role behavior. (Author/EB)

In a study on cognitive style, reflectivity-impulsivity in response to task uncertainty was investigaged. At 44 months of age, 23 boys and 25 girls were tested on a matching-figures test. Correlations were made between number of errors, response time, intelligence, and sex. Results indicated that there were significant sex differences in preschool…

Examines the social networks of 85 young children as they made the transition from a home-centered to a school-centered existence. As children reached school age, they had increased contact with peers and decreased contact with kin. Children as young as three showed more same-sex than opposite-sex peer contact. (Author/BJV)

This study examined the characteristics of the child's social network as it changes within the preschool period. Of particular interest is how the social network changes as the child moves from a more home-centered existence at 3 years to a more school-centered existence at 6 years of age. Also of concern is the effect of sex and socioeconomic…

This paper discusses the processes that are at work which produce some of the differences between male and female human beings. The sex of the child is an important attribute of the organism's identity. Before birth, parents express preferences for the sex of the unborn child and start providing names as a function of the sex of the child. Studies…

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…

Seventeen sets of opposite sex twins, 13 to 14 months old, were observed in a playroom situation with their mothers. Attachment behaviors, toy preference, style of play, and activity level were recorded. Analysis of four attachment behaviors indicated that girls looked at, vocalized to, and maintained proximity with their mothers significantly…

Attachment behavior, toy preference, style of play, and activity level were recorded in 17 sets of opposite sex twins observed in a playrrom setting with their mothers. (ST)

Reports results of an investigation of the effects of age, sex, and experience with peers on infants' peer-directed behavior. (Author/BH)

Portions of this paper were presented at the 1967 meeting of the Society for Research in Child Development, New York.

This study of 12 white, upper-middle-class mothers and their children was conducted to provide information on how verbal aspects of mother-child interaction are differentiated by sex of the child. Results suggest greater verbal quantity and responsivity for mother-female compared with mother-male dyads. (Author/SB)

Comparison of 28 gifted and 20 normal young children suggested that the gifted child is not neccessarily gifted in all areas. In general, sex and handedness history operate similarly in the gifted and normal groups; males perform better than females and the right-handed children perform better than left-handed children. (Author/CL)

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 study examines the effects of sex, socioeconomic status, birth order and birth spacing on the cognitive performance of 12-week-old infants. A brief review of research on neonatal cognitive ability is followed by a description of the study itself. The subjects, 189 three-month-old Caucasian infants (61 first borns, 58 second borns, and 49…