How did Sir Francis Galton purport to measure differences in abilities?a) A paper and pencil examb) He was not interested in examining differences across peoplec) Using multiple physiological measuresd) Using one measure of perceptual discrepancy.
c)
Sir Francis Galton purported to measure differences in abilities using multiple physiological measures. He believed that physical traits such as height, weight, and head size could be used as indicators of intelligence and other mental abilities. He developed various methods to measure these traits, including the use of instruments such as his “anthropometric machine” to measure physical characteristics, as well as his “sensory discrimination tests” to measure differences in perceptual abilities. Galton also developed the concept of “correlation,” which he used to explore the relationship between different mental and physical traits. In general, Galton’s approach to measuring abilities was focused on quantifying and comparing differences across individuals using a range of physical and perceptual measures.
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