The general ability factor (G), as enunciated by Charles Spearman in the model of cognitive functioning, has been the foundation of psychometric theory and test making practices for 80 years. Through these decades, some psychologists disagreed with this theory, especially Godfrey Thompson and E. L. Thorndike. Nevertheless, various aptitude tests…

Research on abstract categorical reasoning has shown that students with "A" grade point averages (GPA) have limited, better and often less, reasoning ability than students with lower GPA's. A similar effect was also found when testing "bright" and "dull" subjects. An analysis of this effect was conducted using the component model of categorical…

A study explored the relation between Piagetian conservation tasks, IQ scores, and reading test scores. A series of 16 items involving conservation tasks for area, length, weight, and volume were presented to 516 students in grades four through nine. The scores on these conservation items were correlated with students' scores on achievement and IQ…

Using data collected by the International Association for the Evaluation of Educational Achievement (IEA), the authors of this study examined the reading achievement of 14-year-old boys in India and England. They sought to determine the factors involved in the academic achievement of these boys in the natural sciences. Factors studied, in addition…

Performance by medical school sophomores (N=106) on higher-order questions in a second year introductory medicine course did not correlate with perceived performance in subsequent clerkships any better than did performance on fact-recall items. The use of multiple clinical simulations may emerge as the only satisfactory controlled assay of…

A study was carried out to test the hypothesis that a difference exists between the results of a paradigmatic/syntagmatic word association test given in an individual's native language and in his second language. The sample used in this study consists of 23 Iranian officers attending a course at Air University in Alabama. Their primary language is…

The present study states as its purpose the delineation of everyday transactions with the environment of a group of children observed longitudinally in their own homes and neighborhoods from age one to three. This research is considered to have been designed to answer: (1) what types of experiences are intellectually valuable to the young child;…