Presents a short biography of one of the winners of the American Psychological Association's Award for Distinguished Scientific Early Career Contributions to Psychology (2012). Thomas L. Griffiths won the award for bringing mathematical precision to the deepest questions in human learning, reasoning, and concept formation. In his pioneering work,…

Presents a theory of pretense in which pretense representations are contained in a separate mental workspace, a Possible World Box, part of the basic architecture of the human mind with several similarities to beliefs. Maintains that pretend play is motivated from a desire to act in a way that fits the description being constructed in the Possible…

Extends William James' classification of phenomenalistic reality (PR) and analyzes PR using empirical data available in developmental psychology; focuses on the relation of PR to a human subject; to rational constructions; and to the idea of truth. Concludes that the development of phenomenalistic reality is qualitatively different from the…

This paper reviews theoretical writings on the importance and function of imaginative play in the development of young children, and describes measurement instruments and instructional aids used for imaginative play in home and school settings. A historical summary of the function of play in the young child's life is presented. Early theories saw…