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…

Theoretical implications of individual differences among infants in responsiveness to visual novelty being predictive of later intelligence differences are discussed. Issues discussed include: continuity of intelligence over development, relation of aspects of information processing to intelligence, role of hereditary and environmental influences…

Discusses the evaluation of educational software designed for use with microcomputers, and emphasizes the need for criteria based on learning theories rather than technological considerations. A review of the literature highlights teacher training in software selection and predictive evaluation, and 49 references are included. (Author/LRW)