Results of the principal component (PC) analysis and impairment scores of the total sample (n = 100)
| Factor loadings | ||||
|---|---|---|---|---|
| Cognitive variable | PC1 | PC2 | PC3 | Impairment score* |
| *Mean (SD). | ||||
| AVLT, Rey auditory verbal learning test; BVRT, Benton visual retention test; COWAT, controlled oral word association test; MRMT, Money’s standardised road map test; PPT, Purdue pegboard test; SCWT, Stroop coloured word test; VOSP, visual object and space perception battery; WCST, Wisconsin card sorting test. | ||||
| AVLT immediate verbal recall | 0.85 | 1.4 (1.3) | ||
| AVLT delayed recall | 0.82 | 0.7 (0.9) | ||
| SCWT interference score | 0.71 | 1.5 (1.6) | ||
| BVRT visual recognition | 0.53 | 1.0 (1.2) | ||
| COWAT word fluency | 0.44 | 1.0 (0.8) | ||
| MRMT right/left orientation | 0.79 | 0.2 (0.4) | ||
| VOSP number location | 0.75 | 0.8 (1.2) | ||
| VOSP cube analysis | 0.62 | 0.6 (1.3) | ||
| WCST categories | 0.84 | 1.4 (1.1) | ||
| PPT total placed pegs | 0.68 | 2.7 (1.1) | ||