Matching Theories of Intelligence with Proponents

This question requires matching different theories related to the structure of human intelligence with the psychologists who proposed them. Let's break down each theory and its association:

Understanding the Theories

• Three-Dimensional Theory of Intelligence: This theory, often referred to as the Structure of Intellect model, was proposed by J. P. Guilford. It suggests intelligence can be broken down into three dimensions: operations, contents, and products, leading to 120 (later 150, then 180) distinct abilities.
• Hierarchical Theory of Intelligence: This theory was developed by P. E. Vernon. He proposed a hierarchical structure of intelligence, starting with a general intelligence factor (g) at the top, followed by major group factors (like verbal-numerical and spatial-mechanical), and then specific factors.
• Two-Factor Theory of Intelligence: Proposed by Charles Spearman, this theory posits that intelligence consists of two factors: a general factor (g) common to all cognitive tasks, and specific factors (s) unique to particular tasks.
• Primary Mental Abilities: L. L. Thurstone developed this theory, which identified seven distinct primary mental abilities that he believed constituted intelligence, such as verbal comprehension, word fluency, number facility, spatial visualization, associative memory, perceptual speed, and reasoning.

Matching List-I with List-II

Based on the understanding of these theories, we can establish the correct matches:

• (a) Three dimensional theory of intelligence corresponds to J. P. Guilford (ii).
• (b) Hierarchical theory of intelligence corresponds to P. E. Vernon (iv).
• (c) Two-factor theory of intelligence corresponds to Spearman (i).
• (d) Primary mental abilities corresponds to L. L. Thurstone (iii).

Summary Table of Matches

Conclusion

Therefore, the correct matching is (a)-(ii), (b)-(iv), (c)-(i), (d)-(iii). This combination aligns with option 1.