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Spearman's two-factor theory proposes that intelligence has two components: general intelligence ("g") and specific ability ("s"). [7] To explain the differences in performance on different tasks, Spearman hypothesized that the "s" component was specific to a certain aspect of intelligence.
When a more appropriate method of analysis, multigroup confirmatory factor analysis, is applied, it has been found that Spearman's hypothesis (i.e., that the difference is due to differences in general intelligence) is only one of several models that could give rise to the observed distributions in test scores (Dolan, 2000).
Vernon extended intelligence theory by adding the importance of the test which he called Intelligence C. [2] Vernon's view of intelligence was a geographic metaphor meaning he viewed intelligence as a map of the mind. The basic unit of analysis in this metaphor is that there are factors that are the sources of individual differences in ...
Spearman found that a single common factor explained the positive correlations among tests. Spearman named it g for "general intelligence factor". He interpreted it as the core of human intelligence that, to a larger or smaller degree, influences success in all cognitive tasks and thereby creates the positive manifold.
WASHINGTON — For Connecticut Attorney General William Tong, President-elect Donald Trump’s pledge to end birthright citizenship is more than just a provocative anti-immigrant policy likely to ...
President-elect Donald Trump said Tuesday he plans to order “very serious tariffs” against Canada and Mexico — and vowed to rechristen the Gulf of Mexico as the “beautiful” Gulf of America.
An elderly New York City woman fought off four potential robbers on New Year’s Day.. Linda Rosa, a retired MTA worker from East New York in Brooklyn, was on her way to a church service on ...
Despite Spearman arguing that g was what emerged from a large battery of tests, i.e., that it was not measured perfectly by any single test, the fact that g-theory suggested that much of ability could be captured in a single factor, and his suggestion that "the eduction of relations and correlates" underlay this general factor led to the quest ...