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Sunday, April 14, 2013

Jensen's, Gardner's, and Sternberg's theories of applications in measurement of general mental ability in the workplace.

According to Jensen (1998), the g factor is the highest-order common factor that can be extracted in a hierarchical factor analysis from a large battery of diverse tests of an assortment of cognitive abilities. Spearman thinking of g as mental energy that could be utilize to mental tasks (Jensen, 1998).

According to Spearman, individual differences in performance on whatsoever mental task result from two sources: differences in the add of mental energy that can be delivered to the specific engine that mediates performance of the task, and differences in the efficiency of energy utilization by the engine. The efficiency of the divers(a) engines differs independently within the same person (Jensen, 1998, p. 19).

As a construct, the g factor can be represented with varying degrees of convenience, efficiency, and validness by a wide variety of vehicles (psychometric tests, laboratory techniques, physiological indices) (Jensen, 1998).

To obtain what Jensen (1998) called the information-processing speed of the brain, you use a device that contains a black saveton surrounded by a semicircle of eight white dismissions. The person being tested sits with her glide by on the going box seat. She presses the black button on the box and waits for a beep; then, after a short but unpredictable interval, one of the eight white buttons lights up. As shortly as that happens, the subject takes her finger off the black button and presses whichever of the white buttons is lit.

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Through a series of these exercises, a computing machine records, in milliseconds, how long it took her finger to leave the black button (reaction time) and how long to press the lighted white button (movement time).

After more than than 25 years, Jensen and his colleagues developed quite a few uniform tests, all of which have in common the measurement in milliseconds of how quickly a...

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