Table 4.
The mean test-retest score, intraclass correlation coefficient (ICC), test retest correlation (rho) and p value
| Scale item | ICC* | Mean (sd) score+ | Rho | p | ||
| Test | Retest | Difference | ||||
| 3 | 0.73 | 7.20 (2.07) | 7.08 (2.24) | 0.12 (0.17) | 0.581 | <.001 |
| 7 | 0.80 | 5.76 (2.87) | 5.76 (2.77) | 0 (0.10) | 0.670 | <.001 |
| 8 | 0.80 | 6.37 (2.66) | 6.34 (2.61) | 0.03 (0.05) | 0.675 | <.001 |
| 9 | 0.81 | 6.38 (2.61) | 6.24 (2.58) | 0.13 (0.03) | 0.681 | <.001 |
| 10 | 0.87 | 4.47 (2.92) | 4.53 (2.96) | 0.06 (0.04) | 0.770 | <.001 |
| 11 | 0.86 | 5.37 (3.10) | 5.33 (3.09) | 0.04 (0.01) | 0.755 | <.001 |
| Total Score | 0.86 | 35.55 (11.71) | 35.28 (11.04) | 0.27 (0.67) | 0.754 | <.001 |
*p < 0.001 for all ICCs, +t-test for paired comparisons not significant.