Cattell's theory defines crystallized intelligence as knowledge and skills accumulated from life experience, education, and cultural exposure. Examples include vocabulary, general knowledge, and problem-solving based on prior learning. In contrast, fluid intelligence involves the ability to think abstractly, reason, and solve new problems without relying on prior knowledge.
| List I (Book/Theory proposed/Characteristic, etc.) | List II (Author/Thinker/Name of Theory, etc.) |
|---|---|
| (A) Two-Factor Theory | (I) G.H. Thomson |
| (B) Group Factor Theory | (II) Spearman |
| (C) Sampling Theory | (III) Thurstone |
| (D) Hierarchical Theory | (IV) Vernon |