PSYC 1160 Chapter 9: Chapter 9- IQ

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Intelligence as sensory capacity: out of sight, out of mind. Galton proposed a radical hypothesis: intelligence is the by-product of sensory capacity. He reasoned that most knowledge first comes through the senses, especially vision and hearing. Therefore, he assumed, people with superior sensory capacities should acquire more knowledge than other people. Galton"s student cattell, assumed that intelligence was a matter of raw sensory ability also. Yet later research showed that different measures of sensory capacities are only weakly correlated. One exceptional sense doesn"t bear much of a relation to another, nor are measures of sensory ability highly correlated with assessments of overall intelligence. These findings falsify galton"s and cattell"s claim that intelligence equals sensory ability. In 1904, alfred binet and th ordore simon, to develop an objective psychological test that would separate slower learners from other children without having to rely on the subjective judgments of teachers.

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