Introduces the common theme among the papers presented in this issue, the development of working memory. Underlines the two different approaches presented. The neo-Piagetian perspective attempts to capitalize on the insights of Piaget's work by proposing information-processing accounts of cognitive development. The second perspective stems from…

Attempts the theoretical rapprochement of two theoretical constructs on working memory, neo-Piagetian models and Baddeley's model. Summarizes both types of models, then discusses their similarities and differences. Presents the results of a longitudinal study that supported the idea that these models might be complementary rather than…

Examines subjects' processing in misleading test items. Suggests that the M-power for children, when assessed behaviorally, may increase with age in a discrete manner, and have the potential to generate interval scales of measurement. In addition, suggests that, in light of the results, what statisticians often consider "error of…