Table 9.
Principal component analyses with a varimax rotation for IVR tasks and the raw scores of the 10 core subtests of the WAIS-IV.
| VARIMAX ROTATED MATRIX | |||
|---|---|---|---|
| Components |
|||
| 1 | 2 | 3 | |
| Number of words without repetitions | |||
| and errors | 0.036 | 0.573 | 0.186 |
| IVR-COG digit span forward | −0.185 | 0.268 | 0.697 |
| IVR-COG digit span backward | 0.280 | −0.036 | 0.684 |
| Raw score for block design | 0.715 | 0.248 | −0.048 |
| Raw score for similarities | 0.334 | 0.718 | 0.096 |
| Raw score for digit span forward | 0.040 | 0.133 | 0.739 |
| Raw score for digit span backward | 0.214 | 0.009 | 0.748 |
| Raw score for matrix reasoning | 0.627 | 0.405 | −0.032 |
| Raw score for vocabulary | 0.277 | 0.771 | 0.203 |
| Raw score for arithmetic | 0.471 | 0.220 | 0.371 |
| Raw score for symbol search | 0.718 | 0.062 | 0.160 |
| Raw score for visual puzzles | 0.705 | 0.141 | 0.127 |
| Raw score for information | 0.210 | 0.778 | −0.075 |
| Raw score for coding | 0.746 | 0.150 | 0.122 |