L.L. Thurstone
(1887-1955)
Louis Leon Thurstone was a pioneer in the psychology field, having disagreed with Spearman's "g" and "s" factors, he concluded that human intelligence was divided into seven different "primary mental abilities" after administering multiple tests to people. The seven different ability categories were: reasoning, verbal comprehension, numerical ability, associative memory, spacial visualization, word fluency, and perceptual speed. Unfortunately for Thurstone, data from his tests also concluded the "g" factor that he disagreed with from Spearman.
(1887-1955)
Louis Leon Thurstone was a pioneer in the psychology field, having disagreed with Spearman's "g" and "s" factors, he concluded that human intelligence was divided into seven different "primary mental abilities" after administering multiple tests to people. The seven different ability categories were: reasoning, verbal comprehension, numerical ability, associative memory, spacial visualization, word fluency, and perceptual speed. Unfortunately for Thurstone, data from his tests also concluded the "g" factor that he disagreed with from Spearman.