The conceptualizations of morphogenic processes suggested by systems theorists provide a useful framework for describing growth and development in complex adaptive self-directing organisms. These processes involve changes in (1) a system's structure, state, or functioning; (2) discontinuities in development; and (3) at least two kinds of…

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…