Table 2.
Descriptive statistics, skewness, and kurtosis of the study variables (N = 803).
| Variables | M | SD | Skewness | Kurtosis |
|---|---|---|---|---|
| Police work stress | 1.787 | 1.194 | 0.388 | −0.479 |
| Work tasks | 2.347 | 1.434 | 0.043 | −0.907 |
| Social life | 1.840 | 1.233 | 0.407 | −0.399 |
| Power motivation | 1.507 | 1.343 | 0.684 | −0.387 |
| Personal ability | 1.457 | 1.172 | 0.659 | −0.011 |
| Negative emotions | 1.609 | 1.328 | 0.678 | −0.136 |
| Organizational management | 1.761 | 1.327 | 0.452 | −0.511 |
| Life satisfaction | 3.756 | 1.557 | 0.123 | −0.412 |
| Pittsburgh Sleep Quality Index | 8.600 | 3.937 | 0.302 | −0.339 |
| Subjective sleep quality | 1.590 | 0.798 | 0.013 | −0.487 |
| Latency | 1.717 | 0.992 | −0.164 | −1.062 |
| Duration | 1.385 | 0.739 | 0.735 | 0.124 |
| Efficiency | 0.550 | 0.874 | 1.547 | 1.425 |
| Disturbances | 1.299 | 0.862 | 0.285 | −0.530 |
| Use of hypnotic medication | 0.179 | 0.595 | 3.582 | 12.365 |
| Daytime dysfunction | 1.879 | 1.000 | −0.455 | −0.893 |
| Perceived social support | 3.627 | 0.960 | −0.027 | −0.285 |
| Subjective support | 5.407 | 1.414 | −0.245 | −0.630 |
| Objective support | 2.587 | 1.149 | 0.448 | 0.399 |
| Utilization of support | 2.295 | 0.768 | 0.380 | −0.427 |