Discusses the logical discontinuity between object and personal knowledge. Proposes an extension of Piaget's subject-object equilibrium to a dialogic situation between an ego and an alter. Suggests that this structural model provides a scheme by which differences in adulthood between adaptive and maladaptive cognitive change can be clarified.…

Subjects between adolescence and older adulthood were asked to describe their causal theories for three social problems. Links between informal reasoning, as displayed by subjects in the study, and scientific reasoning are examined, and the development of reasoning competency is discussed. (BC)

Delegates to the Canadian planning meeting of the International Year of the Child showed most interest in attending workshops on the topic of children in the international context (rather than in a single country context) and least interest in the topic of research. These choices may reflect a realization that (1) if we are to understand our own…

This article proposes that the experience of people categorized as having intellectual disabilities is inadequately represented by disability theory premised on the socially constructed duality between disability and impairment. It argues that representation within the wide world of disability will only be achieved by thinking of disability on a…

Noting that beyond the individual variations among humans, there is a body of mental abilities common to every human being, this book examines the debate among researchers about the extent to which humans are "preprogrammed," and suggests a new scientific psychology of human development. By examining experimental data obtained from…