Correct Answer: Correct answer is: (A) LL Thurston.
Exam Relevance: Psychology exams, Cognitive Psychology exams, Intelligence and Testing exams
Difficulty: Moderate
Concept notes: L.L. Thurstone proposed the theory of primary mental abilities, suggesting that intelligence is composed of seven distinct primary abilities.
Common Mistakes: Students may confuse L.L. Thurstone with Charles Spearman, who proposed the theory of general intelligence (g factor).
Explanations: L.L. Thurstone suggested that intelligence is not a single general ability but rather a set of seven primary mental abilities. These include verbal comprehension, word fluency, number facility, spatial visualization, associative memory, perceptual speed, and reasoning. This theory contrasts with Spearman's concept of a single general intelligence factor.
Option Analysis: - Option A: Correct. L.L. Thurstone proposed the theory of primary mental abilities.
- Option B: Incorrect. Charles Spearman proposed the theory of general intelligence (g factor).
- Option C: Incorrect. Kent Clark is not associated with the theory of primary mental abilities.
- Option D: Incorrect. Sigmund Freud is known for his work in psychoanalysis, not intelligence theories.
Mnemonic: Thurstone's 7: Think "T" for "Thurstone" and "7" for the seven primary abilities.