Table 2.
Varimax Rotated Principal Components Factor Loadings of the 18 Neuropsychological Measured Variables
| Measured Variable | 1 WCST |
2 STROOP |
3 WMS-L |
5 WMS-F |
4 FTP |
6 MST |
7 GPB |
8 TMT |
|---|---|---|---|---|---|---|---|---|
| WMS Visual Immediate Recall | -.170 | .075 | .078 | .897 | .084 | .048 | -.148 | -.069 |
| WMS Visual Delayed Recall | -.112 | .132 | .213 | .887 | .008 | -.016 | -.084 | -.111 |
| WMS Verbal Immediate Recall | -.025 | .093 | .935 | .137 | -.049 | .000 | -.104 | -.081 |
| WMS Verbal Delayed Recall | -.082 | .101 | .931 | .130 | .004 | .000 | -.108 | -.093 |
| Grooved Pegboard-Dominant | -.033 | -.137 | -.154 | -.081 | -.095 | -.010 | .832 | .130 |
| Grooved Pegboard-Nondominant | .051 | -.147 | -.057 | -.143 | .011 | .006 | .825 | .181 |
| Finger Tapping-Dominant | -.048 | .163 | -.003 | .031 | .932 | .079 | -.013 | -.018 |
| Finger Tapping-Nondominant | .011 | .123 | -.039 | .050 | .943 | -.024 | -.067 | -.005 |
| Motor Steadiness-Dominant | .002 | -.004 | -.014 | .015 | .023 | .938 | -.011 | -.018 |
| Motor Steadiness-Nondominant | -.047 | -.053 | .013 | .014 | .028 | .929 | .007 | .073 |
| Trail Making Test – Part A | .088 | -.078 | -.170 | -.026 | -.042 | .065 | .190 | .891 |
| Trail Making Test – Part B | .115 | -.364 | -.010 | -.317 | .033 | -.009 | .241 | .645 |
| Stroop Word | -.053 | .820 | .107 | .078 | .111 | -.045 | -.047 | -.152 |
| Stroop Color | -.072 | .865 | .055 | .056 | .189 | -.008 | -.087 | -.139 |
| Stroop Color-Word | -.091 | .855 | .054 | .086 | .035 | -.013 | -.182 | .014 |
| WCST - # Trials | .891 | -.071 | -.073 | -.004 | -.026 | -.084 | -.079 | -.038 |
| WCST - # Errors | .894 | -.071 | -.024 | -.193 | -.027 | -.002 | -.170 | .075 |
| WCST – Perseverative Errors | .879 | -.074 | -.019 | -.105 | .011 | .036 | -.112 | .132 |
Note: WCST = Wisconsin Card Sort Test, STROOP = Stroop Color-Word Test, WMS-L = Wechlser Memory Scale-Logical (verbal), WMS-F = Wechsler Memory Scale-Figural (Visual), MST = Motor Steadiness Test; GPB = Grooved Pegboard Test; TMT = Trail Making Test