Individual Piagetian Epistemological Development of Children from Ages 6 to 11

This long-term study of children from ages 6 to 11 was undertaken to support the patterns of cognitive development inferred from Piaget's work and its short-term statistical replications. Several Piagetian tasks were used individually with 48 first graders, some of the same and new tasks with 43 of the same children as third graders, and two new tasks with 38 of the same children as fifth graders. Pearson product-moment coefficients indicated that uses of the clinical tasks in the study agreed significantly with those in the literature. In 33 individual line graphs, the average age (as indicated in the literature) for the most difficult task performed by a child at each level was compared with the actual age for the child's performance. Although individual aberrations in rates and patterns of cognitive development were observed, the graphic data supported the main hypothesis of the study.     

Memory for Constrained and Preselected Movement Location and Distance

These experiments assessed the interrelationship between location and distance cues in the coding of movements. In separate experiments subjects recalled either the terminal location or the distance of constrained (Experiment 1) or preselected (Experiment 2) movements following a 15-sec retention interval. Changes in direction amd amplitude of starting position were used to ascertain whether recall errors were related to these changes. The findings of both experiments indicated that location and distance were recalled with similar accuracy when the starting position was identical for the criterion and recall movement. However, analysis of constant errors when the recall starting position was varied in either direction clearly indicated neither terminal location nor distance are coded independently, and memory for movement is based on an interaction between these cues.     

Birth Order and Sex Differences In Complexity-Simplicity,Color-Form Preference and Personality

With 196 undergraduate Ss it was found that (a) females preferred more complexity than males, and first-born males and later-born females preferred more complexity than their respective sex groups; (b) first-born males and later-born females checked adjectives which were like those of independent Ss in a conformity study; (c) there were no significant differences with the Internal-External Control Scale; (d) males preferred more form than females. These significant findings were related to previous research in personality and in creativity.     

Comments on “A neurobiological model for near-death experiences”

Journal of Near-Death Studies -