Table 1.
Component Scores and Item Loadings for the Principal Component Analysis of the PCTB Tasks
| Item | C1 | C2 | C3 | C4 |
|---|---|---|---|---|
| Eigenvalue | 3.066 | 1.513 | 1.404 | 1.063 |
| Percent Variance | 23.59 | 11.68 | 10.80 | 8.18 |
| Spatial Memory | .648 | −.473 | −.014 | .029 |
| Object Permanence | .621 | .243 | .265 | .148 |
| Rotation | .665 | .157 | −.088 | −.002 |
| Transposition | .729 | .046 | −.027 | .102 |
| Relative Numbers | .260 | .392 | .122 | .432 |
| Causality-Noise | .038 | .084 | −.008 | .776 |
| Causality-Visual | −.064 | .711 | −.062 | .114 |
| Tool Use | .218 | .667 | .224 | .063 |
| Tool Properties | .265 | .449 | −.479 | .040 |
| Comprehension | .424 | .400 | .339 | −.356 |
| Production | .458 | .095 | .587 | .150 |
| Attention State | .173 | .084 | .669 | .397 |
| Gaze Following | −.163 | .062 | .584 | −.239 |
Bolded items indicated significant item loading. C = component