Focuses on the question of whether developmental improvement in performance on cognitive tasks is abrupt or continuous. Explains three model-based approaches to this question, and stresses that research conducted in these approaches has indicated that developmental improvements consist of jumps through discrete states. Concludes that these results…

Presents new measure of children's use of an editing operation that suppresses false memories by accessing verbatim traces of true events. Application of the methodology showed that false-memory editing increased dramatically between early and middle childhood. Measure reacted appropriately to experimental manipulations. Developmental reductions…

Reports free and cued recall experiments in which a new model was used to obtain measurements of age changes in storage and retrieval. Participants were 7- and 11-year-olds. Findings concern (1) contributions of storage and retrieval to memory development; (2) effects of errors and successes on memorization; and (3) difficulty of storing and…