The aim of this study was to determine whether patients suffering from a chronic illness and taking medication which can affect their cognitive functioning are able to assess their own cognitive performance, as compared to healthy controls. Can we observe improvements in the accuracy of these self-evaluations as treatment progresses? 58 epilepsy patients participated in the first part of the st...

Many preschoolers know that plants and animals share basic biological properties, but this knowledge does not usually lead them to conclude that plants, like animals, are living things. To resolve this seeming paradox, we hypothesized that preschoolers largely base their judgments of life status on a biological property, capacity for teleological action, but that few preschoolers realize that p...

Distribution of ABO blood groups, Rh, PTC taste ability and colour blinness was investigated among twelve endogamous populations of Terai belt (Indo-Nepal border) of Bihar, who belonged to different castes and ethnic groups with different migrational history. The phenotypic and gene frequencies of four common loci show wide differences between the populations. In general, group B is dominant ov...

We report on a large study of how U.S. middle-school students learned to reason scientifically in a science curriculum centered around models and argumentation. We discuss the design of our curriculum, the method of the study, and present selected results related to overall curriculum effects and to methods of promoting growth in students’ reasoning.

Learning of class inclusion by 5-year-olds in response to empirical and logical explanations of an adult’s answers was examined. Contrary to the view that young children possess an empirical bias, 5-year-olds learned more, and continued learning for longer, when given logical explanations of correct answers than when given empirical explanations. Once children discovered how to solve the proble...