Table 3 |
|||||
|
Factor loading matrix (n = 498)*. |
|||||
|
Test battery |
Item |
Factor I |
Factor II |
Factor III |
Factor IV |
|
|
|||||
|
NES |
SRTT |
0.743 |
|||
|
|
|||||
|
Block_RT |
0.764 |
||||
|
|
|||||
|
Arrow_RT |
0.769 |
||||
|
|
|||||
|
Switch_RT |
0.618 |
||||
|
|
|||||
|
Block_f |
0.631 |
||||
|
|
|||||
|
Arrow_f |
0.757 |
||||
|
|
|||||
|
Switch_f |
0.632 |
||||
|
|
|||||
|
SDST |
0.369 |
||||
|
|
|||||
|
DMST_f |
0.492 |
||||
|
|
|||||
|
HECT |
0.538 |
||||
|
|
|||||
|
PP |
Conceptual recall |
0.922 |
|||
|
|
|||||
|
Information recall |
0.918 |
||||
|
|
|||||
|
Recognition |
0.675 |
||||
|
|
|||||
|
CRIE |
0.458 |
||||
|
|
|||||
|
Working memory |
0.682 |
||||
|
|
|||||
|
Sustained attention |
0.608 |
||||
|
|
|||||
|
Prospective memory |
0.469 |
||||
|
|
|||||
|
Factor |
Interpretation |
Variance explained |
Alpha** |
||
|
|
|||||
|
I |
Response speed and locomotion |
20.3 |
0.76 |
||
|
|
|||||
|
II |
Episodic memory and reading comprehension |
15.1 |
0.77 |
||
|
|
|||||
|
III |
Ability to switch and perceptual coding |
10.8 |
0.58 |
||
|
|
|||||
|
IV |
Memory and attention |
6.5 |
0.42 |
||
|
|
|||||
|
Total |
52.7 |
||||
|
|
|||||
|
* Per item only the highest loadings were presented; ** Cronbach's alpha (standardized), based on the items given in the factor loading matrix; this is a function of the item-inter-correlation and of the number of items included in the scale. Abbreviations: NES = Neurobehavioral Evaluation System; PP = Paper- and-pencil test. |
|||||
|
van Kempen et al. Environmental Health 2010 9:25 doi:10.1186/1476-069X-9-25 |
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