| Reliability Type | Description | Coefficient |
| Test-Retest | External Consistency of Items | 0.70 |
| Intraclass-Correlation (ICC) | External Consistency of Items | 0.83 |
| Guttman Split-Half | Internal Consistency of Items | 0.76 |
| Cronbach Alpha | Internal Consistency of Items | 0.78 |
| Spearman-Brown | Internal Consistency of Items | 0.77 |