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…

This paper reports on part of a longitudinal study of personality and cognitive development in young children, specifically, efforts to identify and measure the concepts of ego control and ego resiliency. The concept of ego control refers to the disposition or threshold of an individual with regard to the expression or containment of impulses and…