PSYC 110 Chapter Notes - Chapter 10: Wechsler Adult Intelligence Scale, Fluid And Crystallized Intelligence, Memory Span
7 Dec 2016
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Document Summary
The practice and theory of intelligence testing. Sir francis galton (1822-1911) investigated relation bet. intellectual achievement and a range of basic sensory and cognitive abilities. Revised and is still used, but not most common (weschler) Verbal comprehension, perceptual processing, working memory, processing speed test=valid when it measures what it is intended to measure. Common factor measured by every mental test. Underlying ability that contributes to a person"s performance. Fluid intelligence and crystallized intelligence (according to cattell) on all mental tests. Ability to perceive relationships among stimuli independently of previous specific practice or instruction concerning those relationships. Biologically determined and reflected by tests of memory span, speed of processing, and spatial thinking. Mental ability derived directly from previous experience. One cannot ask whether intelligence comes more from genes or from environment. Heritability the degree to which variation in a particular trait stems from genetic differences as opposed to environmental differences. Quantified by heritability coefficient-- ranges from 0 to 1. 0.
