Table 4 Reliability: Internal consistency and stability of the three sections of the PCQ-C
From: The Prostate Care Questionnaire for Carers (PCQ-C): reliability, validity and acceptability
| Internal consistency | Stability: Test-retest reliability | |||
|---|---|---|---|---|
| Sectioni | Cronbach's α |
1st mailing mean score SD, min-max (N) |
2nd mailing mean score SD, min-max (N) | Intraclass Correlation Coefficient (ICC) |
| Section A | 0.80 |
65.4 26.7, 14.8-100 (29) |
63.9 23.2, 12.7-96.5 (28) | 0.77 |
| Section B | 0.82 |
90.2 16.1, 16.7-100 (29) |
94.0 7.5, 72.2-100 (27) | 0.52 |
| Section C | 0.89 |
80.7 20.9, 9.1-100 (40) |
77.9 23.9, 8.3-100 (43) | 0.83 |