Thirty-two preadolescents were observed in a longitudinal study of attachment and subsequent social development, and case studies of four friendship pairs were conducted. Findings suggest a process model of friendship formation based on repetition of infant attachment history in establishing children's preadolescent friendships. Proposes a 3-stage…

Part of a prospective longitudinal study examining factors that account for developmental outcomes for high-risk children, this investigation focused on how successful adaptation at 12 and 18 months is related to adaptation at 24 months, 42 months, and 4.5 to 5 years of age. Assessments at each age were designed to indicate how the child was…