The relation between Piaget's logical theory of formal operational thinking and his account of cognitive development is discussed. Formal operational thinking was found to be a unitary construct, and both heterogeneity of performance and decalage were found to be smaller than a recent review had suggested. (Author/KC)

This paper focuses on behavioral dimensions of playfulness: (1) in a developmental framework; and (2) in a situational framework. As a result of theoretical model building, it was hypothesized that there may be a resurgency of playfulness, assumed to be a personality trait of the player, in adolescents. The most significant finding is the…

The theoretical perspective of Sullivan proposes that during preadolescence, a "chum" relationship increases a child's sense of self-worth. Subjects were 60 male sixth graders, with an equal number in the chumship and non-chumship groups. Self-concept was measured with the Piers-Harris Children's Self-Concept Scale. The results show that…

This manual presents an 18-step program designed both to teach parents the skills they need to manage difficult adolescent behavior and to improve family relationships overall. Steps 1 through 9 modify the approach presented in Russell Barkley's earlier edition, "Defiant Children," to focus on developmental concerns of adolescence. Clear…

Psychosocial development is the focus of this psychology textbook. In part 1, a view of human development and society, the following areas are covered: (1) basic concepts of psychosocial development; (2) ways of viewing human development; and (3) dilemmas in human development. Part 2, the development of symbolic behavior and special factors in…

This paper discusses various theories of developmental psychology, and presents a developmental theory of socialization founded upon the following premises: (1) that a materialistic theory of development and socialization must incorporate not only ecological aspects but also underlying political/economic dynamics of the society in which and for…

Adolescence is a multiplicity of events, experiences, behavior, people, and cultural meanings. This book attempts to provide detailed and in-depth analysis of the central issues related to adolescent psychology, while taking this multiplicity into account. A comprehensive representation of the topic is provided through integration of historical,…

Adolescence is a critical period in biological, cognitive, and social development. The transition from childhood to adulthood is a time of particular vulnerability and risk as well as of opportunity for preventive interventions. The Carnegie Council on Adolescent Development is seeking to assess and develop programs to facilitate this transition.…

This encyclopedia is a comprehensive reference work addressed to those interested in human development from birth through adolescence, including students of child development, teachers, health care providers, child psychologists, family counselors, education professionals, academics, and parents. Signed entries in the encyclopedia were prepared by…