To assess the influence of personal and environmental factors on the composition of children's networks and the relative amounts and use of time spent with people of various ages, sexes, and roles, 72 Swedish children between the ages of 8 and 11 replied to interview questions about their family members, relatives, friends, and the nonrelative…

Children who had been classified at 12 and 18 months of age according to their attachment to mother and father were observed in play groups and given a social perception test at 5 years. Findings suggest that infant-mother attachment is a more powerful predictor of social competence in preschool than is father attachment or combined mother and…