AP PSYCHOLOGY

Detailed explanation-1: -Psychologist Louis L. Thurstone (1887–1955) focused on seven primary mental abilities rather than a single, general ability.3 These include: Associative memory: The ability to memorize and recall.

Detailed explanation-2: -Louis Leon Thurstone proposed theory in 1930’s that intelligence is composed of several different factors. The seven primary mental abilities in Thurstone’s model were verbal comprehension, word fluency, number facility, spatial visualization, associative memory, perceptual speed and reasoning.

Detailed explanation-3: -The seven primary mental abilities in Thurstone’s model are verbal comprehension, verbal fluency, number facility, spatial visualization, perceptual speed, memory, and inductive reasoning (Thurstone, as cited in Sternberg, 2003).

Detailed explanation-4: -Primary mental abilities were first discussed by L.L. Thurstone in 1935 and could be described as latent core constructs that can explain nearly all cognitive differences. Thurstone was doing research at a time when intelligence tests were first coming on the scene and people were arguing between two basic camps.

Detailed explanation-5: -3. Thurston’s Group Factor Theory. Louis Thurston came out with the group factor theory (1937) saying that Intelligence is a cluster of abilities. These mental operations then constitute a group. A second group of mental operations has its own unifying Primary factor; a third group has a third Primary factor and so on.