Discover the various Wechsler Intelligence Tests, including WAIS, WISC, and WPPSI, along with the Common Features of the tests and the revisions made over time. Explore the Cattell-Horn-Carroll (CHC) model of intelligence, test scores, sub-tests, and psychometrics.
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Common features of Wechsler tests Full Scale IQ 2 major second level categories 12 15 subtests Individually administered 50-70 minutes administration time Normative data Comprehensive manuals
Revisions: More contemporary words, pictures, terms More culture free Better norms More theoretical base (CHC model) Link to information on CHC model
Cattell-Horn-Carroll (CHC) model General factor of intelligence (g) Started with Gf-Gc theory (fluid/crystallized) Specific abilities (number varies)
