Vernons hierarchical theory of intelligence youtube. Instead, he argued, each subtest depends both on g and on some other abilities that are specific to that particular subtest. In the structure of human abilities 1950 vernon presented his hierarchical group factor theory of the structure of human intellectual abilities. At the top of this hierarchy was spearmans general factor g, which accounted for the largest source of the variance in intelligence. The g factor is a construct developed in psychometric investigations of cognitive abilities and. The threestratum theory is a theory of cognitive ability proposed by the american psychologist. Discuss vernons hierarchical theory of intelligence. Characteristics of people with regard to their intellectual activities and abilities indicate that the intelligence cannot be a single function or capacity. Psychologists have attempted to analyze these components, which has resulted in the development of different theories. It retains g factor, and relegates thurstone s and guilfords structure of intellect to subordinate level.
Vernon description of different levels of intelligence may fill the gaps between two extreme theories, the twofactor theory. Theories and issues 28 broader level, but still inspir ed by cognitive theory, stankov and crawford 1997 have been workin g on the concept of selfconfidence. In the structure of human abilities 1950 vernon presented his hierarchical group factortheory of the structure of human intellectual abilities. Vernons theory is a compromise formula, between spearmans two factors and thurstones multifactor theory. Nonhierarchical models suggested by thurstone and guilford.
At the top of his hierarchic al model was spearman s g and then there were two major group factors. Factor theory of intelligence, which states that performance on an. Vernon description of different levels of intelligence may fill thegaps between two extreme theories, the twofactor theory of spearman, which did not allow for the existence of group factors, and the multiplefactor theory of turstone, which did not allow a g factor. Hierarchies of factor solutions in the intelligence domain. A theory of adaptive intelligence and its relation to general. Notes on factor theories and cognitive theories of intelligence.
Vernon preferred factor analysis for research and applied this approach t o intelligenc e. Contemporary hierarchical models of intelligence include the three stratum theory and the. This model suggests that intelligence is best conceptualized in a hierarchy of three strata. Psychometrics, intelligence, and public perception pdf. Spearman realized, however, that g is not the sole determinant of test performance e. The g factor targets a particular measure of general intelligence. At the top of this hierarchy was spearmans general factor g, which accounted for the largest source of the variance inintelligence.
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