TABLE 2.
Results of the measurement model
| Measure | Item | Standardized factor loading a | Omega | AVE |
|---|---|---|---|---|
| Sleep problem index at baseline (MOS) | MOS1 | 0.730 | 0.849 | 0.49 |
| MOS3 | 0.798 | |||
| MOS4 (reversed) | 0.636 | |||
| MOS5 | 0.702 | |||
| MOS6 | 0.713 | |||
| MOS7 | 0.825 | |||
| MOS8 | 0.704 | |||
| MOS9 | 0.604 | |||
| MOS12 (reversed) | 0.521 | |||
| Sleep problem index at follow‐up (MOS) | MOS1 | 0.717 | 0.859 | 0.47 |
| MOS3 | 0.783 | |||
| MOS4 (reversed) | 0.625 | |||
| MOS5 | 0.690 | |||
| MOS6 | 0.700 | |||
| MOS7 | 0.810 | |||
| MOS8 | 0.691 | |||
| MOS9 | 0.593 | |||
| MOS12 (reversed) | 0.512 | |||
| Stress (DASS‐21) | DASS1 | 0.794 | 0.898 | 0.65 |
| DASS6 | 0.747 | |||
| DASS8 | 0.766 | |||
| DASS11 | 0.866 | |||
| DASS12 | 0.917 | |||
| DASS14 | 0.781 | |||
| DASS18 | 0.773 | |||
| Anxiety (DASS‐21) | DASS2 | 0.491 | 0.821 | 0.54 |
| DASS4 | 0.735 | |||
| DASS7 | 0.664 | |||
| DASS9 | 0.800 | |||
| DASS15 | 0.876 | |||
| DASS19 | 0.720 | |||
| DASS20 | 0.806 | |||
| Depression (DASS‐21) | DASS3 | 0.827 | 0.879 | 0.62 |
| DASS5 | 0.649 | |||
| DASS10 | 0.790 | |||
| DASS13 | 0.901 | |||
| DASS16 | 0.798 | |||
| DASS17 | 0.747 | |||
| DASS21 | 0.807 |
Abbreviations: AVE, Average Variance Extracted; DASS‐21, Depression, Anxiety, and Stress Scale; MOS, Medical Outcome Study Sleep Scale.
a
All factor loadings are statistically significant (p < 0.001).