Which set lists Thurstone's seven primary mental abilities?

• A. Verbal comprehension; Word fluency; Number facility; Perceptual speed; Memory; Space; Reasoning
• B. Verbal comprehension; Fluid intelligence; Crystallized intelligence; Processing speed
• C. g; Verbal IQ; Performance IQ; Emotional intelligence
• D. Spatial reasoning; Logical reasoning; Numerical facility; Memory; Creativity

Answer: (A)

Thurstone’s view of intelligence holds that it comprises several distinct abilities rather than a single general factor. His seven primary mental abilities are verbal comprehension, word fluency, number facility, perceptual speed, memory, space, and reasoning. The option listing exactly these seven abilities matches Thurstone’s framework, making it the best choice.

This contrasts with other theories that group abilities differently—for example, some options mix in fluid and crystallized intelligence or general IQ concepts, which belong to other models. The alternative choices also include traits like emotional intelligence or creativity, which aren’t part of Thurstone’s seven primary abilities.