Spearman, Charles

(1863 - 1945) - English psychologist. Developed a series of statistical techniques to measure the structure of intelligence. Studying the correlation between the results of implementation of various tasks and using factor analysis, . proposed two-factor theory of intelligence, . according to Roy-allocated: general (general) factor, . forms the foundation of any successful mental activities and a number of special factors, . needed for solving problems in individual areas ( 'A human', . 1927).,