Table 1.
Agreement statistics
| Test (SD) | Retest (SD) | Mean difference (95% CI)* | p-value | Sw | Repeatability coefficient | |
| WORC | 44.4 (15.1) | 45.0 (16.1) | -0.6 (-3.0 to 1.7) | 0.59 | 6.2 | 17.2 |
| OSS | 43.1 (15.4) | 41.3 (12.9) | 1.8 (-0.4 to 4.0) | 0.11 | 5.8 | 16.1 |
| SPADI | 51.4 (17.8) | 52.6 (18.5) | -1.2 (-3.9 to 1.5) | 0.38 | 7.1 | 19.7 |
Agreement estimated by the difference between test and retest, the within-standard deviation (Sw), and the repeatability coefficient.
* 95% CI For paired t-test under null hypothesis = no difference between test and retest score. 95% CI = 95% confidence interval. SD = standard deviation