Intelligence is the ability to learn from experience, to think rationally, and to deal effectively with the environment. Louis Thurstone believed with his Theory of Primary Mental Abilities that intelligence was comprised of nine distinctly different elements, which he named as the primary mental abilities. These nine primary mental abilities were: visual and spatial ability (the ability to picture shapes and spatial relationships), perceptual speed (the ability to understand perceptual information rapidly and to see …showed first 75 words of 577 total…

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