Dual-process theories have become increasingly influential in the psychology of reasoning. Though the distinction they introduced between intuitive and reflective thinking should have strong developmental implications, the developmental approach has rarely been used to refine or test these theories. In this article, I review several contemporary…

Notes the tumultuous relationship between researchers and theorists who identify with either Jean Piaget or Lev Vygotsky. Argues that both theorists start from basically the same place in developing their contributions to the study of human development and that new and important theoretical contributions may be possible through a dialectical…

Discusses Frege's influence on Piaget. Concludes that: Frege's work influenced Piaget from the outset; their positions were parallel related to logic and judgment, number conservation, and sense and meaning; and the implications of the argument concern nonpsychologism and psycho-logic, psychological laws and causal origins of human judgment, and…

Replies to commentary regarding authors' earlier article proposing a modified constructivist account of origins of mental representation. Elaborates on Smith's discussion contrasting empiricist and constructivist approaches. Discusses Smith's restatement of Piaget's position in terms of levels of representational capacities and replies to specific…

Because early theoretical frameworks such as Piaget's stage model and social learning theory sought to explain the development and performance of imitation in terms of overall group trends, any evidence for individual differences in this behavior was until recently largely overlooked. Results of contemporary imitation studies have not only begun…

Discusses objective knowledge and reality; objective experience and objectivity; objectivity without representation; and problems with constructivism. Argues that at issue with Muller, Sokol, and Overton's model is dispensability of the representation concept in an account of knowledge development during infancy. Concludes that a constructivist…

Responds to calls for combining the ideas of Piaget and Vygotsky, discussing differences between the two perspectives. Notes that differences are found in underlying assumptions about the nature and process of development, philosophy, stages of development, developmental influences, and the integrity of cognitive structures. Suggests that, given…

Addresses the extent to which differences in Piagetian and Vygotskyan psychologies make their theories incompatible. Differences result from a Vygotskyan belief in a material primary cause for development; Piagetians do not hold this view. Explores this difference in perspective, concluding that, despite it, the two approaches are compatible. (JW)

Suggests a model for the development of mental representation. Explores empiricist and constructivist models and maintains that the constructivist model provides a better ground for theory building. Evaluates Piaget's constructivist account of the emergence of mental representation. Proposes that his account is insufficient and suggests a…

Maintains that although Kohlberg emphasized the importance of perspective taking in moral reasoning, his view of developmental stages is inconsistent with this position. Argues that a modification of Kohlberg's conception of stages drawing on Piagetian theory would result in a view of moral reasoning as a process of coordinating all perspectives…

Two experiments used a formal model of developmental discontinuity derived from catastrophe theory to test whether the transition from Rule I to Rule II on the balance scale task proceeds discontinuously from ages 6 to 10, focusing on five catastrophe flags. Found that bimodality, inaccessible region, hysteresis, and sudden jump were clearly…

Discusses the influence of Levy-Bruhl's analysis (1910) of "primitive" mentality on Piaget's research and theory contrasting child and adult ontology and logic. Maintains that parallels between their research designs substantiate Piaget's explicit references to Levy-Bruhl. Suggests that their conceptual kinship has implications for an…

Suggests an account of transitivity and transitive inferential reasoning differing from classic Piagetian and current information processing accounts. Postulates a three-component psychological system, with components relying on perceptual, linguistic, and conceptual subprocesses and sensitivity to simple cues. Maintains that the framework is…

Asserts that developmental psychology's assumption that representation has nature of encoding is false; offers alternative model of representation based on the pragmatics of action. Argues that "frame problems" originate in the inherent requirement that encoding representations carry explicit content. Maintains that these problems impact…