Concepts of inner direction and of other direction are related to sex differences in correlates and antecedents of achievement motivation and behavior. (Author/ED)

Specifies some problems in the Piagetian characterizations of assimilation and accommodation and offers an alternative formulation intended to resolve some conceptual anomalies. On the basis of the revision, the orthogenetic law of developmental progression is explicitly derived. Further, Piaget's notion of "equilibrium" is extended into…

In a discussion of psychological development separate sections are devoted to (1) biological and cultural influences on development, (2) development in infancy, early childhood, middle childhood, and adolescence, (3) physiological foundations of behavior, (4) motivation and cognitive development, (5) intellectual development, (6) imagination and…