In a study, few subjects accepted empirical evidence of nonconservation of discontinuous quantity and weight. These findings were interpreted as support for the organismic-developmental claim that lower forms of reasoning are transformed into structurally more advanced forms. (Author/ED)

Suggests that the ability to process narrative information is fundamental to understanding human psychological development. Notes that a culture's system of understanding and interpreting the world is carried mostly by stories and texts. Explores how narrative understanding can be modeled in Fuzzy Trace Theory by using the principles of this…

Describes two experiments that examined the effects of quantity and depth of processing on elementary school children's time perception. (HOD)

Reviews efforts to develop mathematical models in developmental psychology. Explores recent developments in using dynamical systems for modeling human psychological processes. Comments on the studies described in this journal issue on dynamic modeling of cognitive development. Suggests that using this framework holds great promise for clarifying…

Proposes a new conceptual framework, embedded in a dynamic model, that accounts for children's failure to reason transitively. Examines five different models of transitive reasoning. Develops a model of how children initially represent and then use the ordered information available in the transitive inference model and how these processes change…