Table 2.
Item Loadings for a Promax-Rotated Factor Matrix of the CBCL Sleep Composite Subscale using the Kaiser-Criterion (N = 215).
| CBCL Item | Factor 1a | Factor 2b | Factor 3c | r with Corresponding SDSC Factor |
|---|---|---|---|---|
| 76. Sleeps less than most kids during the day and/or at night | 0.81 | 0.57∗∗d | ||
| 100. Trouble sleeping | 0.80 | 0.70∗∗d | ||
| 108. Wets the bed | – | – | – | – |
| 77. Sleeps more than most kids during the day and/or at night | 0.81 | 0.22∗∗e | ||
| 54. Overtired without good reason | 0.40 | 0.34∗∗e | ||
| 47. Nightmares | 0.70 | 0.53∗∗f | ||
| 92. Talks or walks in sleep |
0.52 |
0.49∗∗f |
||
| % of Variance | 21.30% | 11.64% | 8.81% | |
| Cronbach's α | 0.78 | 0.47 | 0.52 |
Note. Item loadings < 0.30 are suppressed.
∗∗p < 0.001.
a
Factor 1 = Initiating and Maintaining Sleep.
b
Factor 2 = Hyper-somnolence.
c
Factor 3 = Disordered Sleep Arousal.
d
Corresponding SDSC Subscale = Disorders Initiating and Maintaining Sleep.
e
Corresponding SDSC Subscale = Disorders of Excessive Somnolence.
f
Corresponding SDSC Subscale = Disorders of Arousal.