o Spearmans g factor g is for general o Kids doing well in school usually do so

O spearmans g factor g is for general o kids doing

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o Spearmans g factor (g is for general) o Kids doing well in school usually do so in many subjects o Similarly, people who do well on Stanford binet test tended to do well on different types of items Vocabulary, puzzles, arithmetic… May not be perfect correlations (see factor analysis example) but 0.3 is still statistically significant o Suggested that intellect is partly based on a “general intelligence” fact (g) that influences all tasks Verbal and quantitative abilities are clearly distinct… BUT g cuts across all tasks – it’s the core of intelligence Essentially, intelligence is one score o Is “g” real? Predicts success in high school, university, year of education, later earnings, predicts who gets hired, predicts on-the-job success better than measures of specific abilities tailored to individual jobs, predicts likelihood of divorce (within 5 years), predicts likelihood of incarceration Hierarchal models of intelligence o Combine aspects of the 2 previous approaches by “nesting” specific abilities under g o By far the most common approach, currently Crystallized vs Fluid intelligence o cattall-Horn model divides “g” into 2 sub-types:
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o crystallized intelligence (gc) applying previous knowledge – including facts, or problem-solving schemas so, this is the major basis of Expertise… cultural influence (in problem solving schemas) mostly LTM o fluid intelligence (gf) ability to deal with novel situation (i.e. you have no previous experience with it) inductive reasoning, creative problem solving.. depends on efficient CNS, not knowledge bank mostly WM o note: fluid intelligence may become crystallized o activate different brain areas suggests actual difference o over lifetime, move from using Gf to Gc gain experience with more problem types more knowledge, schemas (crystallized intelligence) wisdom Gc improves into adulthood, remain strong; Gf declines in late adulthood Combining ALL the models… o Carrol’s three Stratum Theory: o Combines all the previous ideas into one o G underlies 8 “intellectual factors” Intellectual factors are different than Thurstone’s original “primary mental abilities” E.g. Fluid & crystallized intelligence are I.F.’s o The 8 “intellectual factors” underlie ~70 specific cognitive abilities The more a factor is influenced by g, the farther to the left it is in the model (i.e. nearer to g)
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*fluid and crystallized are 2 of the factors and are in fact the most related to general intelligence. Gardner’s model: gardner’s multiple intelligences: o “current definitions of intelligence are too limited” o what about a musical genius? o Or someone with amazing hockey sense?
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  • Fall '14
  • Theory of cognitive development

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