Thurstone believed that intelligence was established from one primary factor similar to Spearman's "g."

Question

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Thurstone disagreed with Spearman's idea of a singular general intelligence factor and instead proposed that intelligence was made up of separate, distinct abilities or factors. He identified seven primary mental abilities: verbal comprehension, word fluency, number facility, spatial visualization, associative memory, perceptual speed, and reasoning.

Thurstone Believed That Intelligence Was Established from One Primary Factor