Table 1.
s-SIB – reliability values and explained common variance.
| Total | PA | NA | PL | IA | |
|---|---|---|---|---|---|
| Cronbach α (distress) | 0.93 | 0.83 | 0.84 | 0.79 | 0.83 |
| Cronbach α (performance) | 0.94 | 0.82 | 0.85 | 0.81 | 0.81 |
| Cronbach α (distress – changed) | 0.93 | 0.83 | 0.86 | 0.77 | 0.85 |
| Cronbach α (performance – changed) | 0.94 | 0.82 | 0.86 | 0.81 | 0.79 |
| McDonald ω (distress) | 0.95 | 0.91 | 0.88 | 0.85 | 0.89 |
| McDonald ω (performance) | 0.95 | 0.89 | 0.88 | 0.86 | 0.85 |
| McDonald ω (bifactor-distress) | 0.95 | ||||
| McDonald ω (bifactor-performance) | 0.95 | ||||
| hierarchical McDonald ω (distress) | 0.72 | ||||
| hierarchical McDonald ω (performance) | 0.77 | ||||
| hierarchical McDonald ω (bifactor-distress) | 0.89 | ||||
| hierarchical McDonald ω (bifactor-performance) | 0.90 | ||||
| Explained Common Variance (distress) | 0.57 | ||||
| Explained Common Variance (performance) | 0.66 | ||||
| Explained Common Variance (bifactor-distress) | 0.73 | ||||
| Explained Common Variance (bifactor-performance) | 0.77 | ||||
PA, Positive Assertion; NA, Negative Assertion; PL, Expression of and Dealing with Personal limitations; IA, Initiating Assertiveness. Changed = item 3 moved to Initiating Assertiveness, item 13 to Negative Assertion, and removal of item 17.