Wechsler’s intelligence tests (e.g., WAIS, WISC) provide separate scores for verbal and performance abilities. In contrast, the Stanford-Binet test has traditionally offered a single IQ score derived from a ratio formula.
This approach enables a more nuanced understanding of cognitive strengths and weaknesses across various domains.
| 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 |