Table 2.
Principal Component Analysis After Varimax Rotation
| Component 1, General Intellectual Ability/ Abstract Thinking | Component 2, Working Memory/ Attention | Component 3, Processing Speed | Component 4, Memory and Learning | |
|---|---|---|---|---|
| Information (standard score) | 0.876 | |||
| Full Scale IQ | 0.766 | |||
| Similarities (standard score) | 0.638 | |||
| fNART IQ | 0.632 | |||
| Picture Completion (standard score) | 0.552 | |||
| Matrix Reasoning (standard score) | 0.480 | |||
| Digit Span (standard score) | 0.772 | |||
| Letter-Number Sequencing (standard score) | 0.737 | |||
| CPT-IP mean d-prime | 0.681 | |||
| Arithmetic (standard score) | 0.620 | |||
| Trail Making Test A (time) | −0.808 | |||
| Trail Making Test B (time) | −0.761 | |||
| Digit Symbol Coding (standard score) | 0.560 | |||
| CVLT recognition | 0.812 | |||
| CVLT short delay free recall | 0.797 | |||
| Doors Test (A&B) | 0.454 |