The comparison of the neurocognitive functioning of people with pediatric bipolar disorder (PBD) with a control group shows that the developmental progress in executive functions and verbal memory of those with PBD was significantly less than those in the control group. The results were seen after comparing data from baseline cognitive tests and a…

Fuzzy trace theory posits that during development the use of verbatim information for solving transitive relationships shifts to the use of gist information. In cognitive developmental research that uses a cross-sectional design, the binomial mixture model is often used to identify such shifts. Because the binomial mixture model assumes equal task…

Three experiments (sorting and theory-of-mind tasks) examined whether, for preschoolers, a particular form of reasoning applied to theory-of-mind and a set of problems requires understanding of mental states. Found that advances in theory of mind, card sorting, and causality depend on ability to switch judgments across conditions; reasoning by…

Twenty-two children ranging in age from 2 to 3 years were tested on their abilities to apply weight and distance rules to the balance scale. This study was performed to test the prediction that 2-year-olds would be able to understand either a weight rule or a distance rule, but not be able to integrate the two. The sample group was instructed in…

Case's cognitive developmental theory was used in an investigation of unconstrained drawings by children 4, 6, 8, and 10 years of age. The objectives were: (1) to look for qualitative changes in drawing at these ages, (2) to relate whatever changes were found to qualitative changes in other tasks during the same period, and (3) to test whether a…

This study examined how well adults can make inferences about children's cognitive abilities. Subjects (n=60) were four groups of adults: female parents, female nonparents, male parents, and male nonparents. They were shown the typical method of administering 13 Piagetian tasks, ranging from object permanence to the formal-operational pendulum…

In this study, six children were selected by age and were administered Piagetian tasks designed to measure their level of cognitive development against the hierarchical structuring of age/achievement posited by Jean Piaget. The task administrations are presented in detail with descriptions of the subject and the tasks, a verbatim report, and the…

The purpose of this study was to identify potential sources of individual and group differences affecting formal thought, and to examine the relationship between the performance of college students on a specific formal operational task and their performance on other cognitive measures identified as possible sources of individual differences. (MK)

The concepts of cognitive development and objectivity are explored preparatory to a discussion of a suitable theory of development to be used as the foundation for developmentally-based standardized tests. It is hypothesized that Piagetian theory is the most appropriate basis for such tests and two possible approaches for constructing…

In a pilot study of children's drawings of "a house with a tree behind it," Piagetian sequence (scribbling, fortuitous realism, failed realism, intellectual realism, and visual realism) was tentatively supported. Children's strategies in decentering from intellectual to visual realism were noted. The study reported in this paper was…

Reviews major purposes and conclusions, and criticisms of cross cultural Piagetian studies conducted during the last two decades. The particular interest of science educators in the work is discussed in light of the availability of new instruments for assessing levels of cognitive development and for analyzing science curricula. (Author/JN)

The authors studied the evolution of interindividual intentionality in children and showed that the sharing of knowledge and beliefs requires more complex operations than those involved in usual false-belief tasks. The authors conducted 3 experiments on 380 children (aged 5 years, 0 months to 9 years, 6 months). They assessed the children's…

Researchers have attempted to develop paper and pencil Piagetian tests that yield results equivalent to manipulative Piagetian tasks and that can be administered in significantly less time. This study is an attempt to partially replicate and extend the findings of research by Paul Ankeny and Lyle Joyce who found significant positive correlations…

A sample of college students was used to determine whether there was a correlation between Lowenfeld's visual-haptic continuum and Piaget's concrete-formal continuum. Three instruments were administered--a questionnaire, the Successive Perception Test I (Gibson) which identified an individual's location on the visual-haptic continuum, and the…

A project to evaluate Furth's Inventory of Piaget's Developmental Tasks is described, particularly as that test might be useful in adapting instruction and curricula to the cognitive level of science students. This multiple-choice paper-pencil inventory has 72 items in five problem areas: conservation, images, relations, classification, and laws.…