Study sample | Pooled sample (n = 131) | Preoperative sample (n = 72) | Postoperative sample (n = 59) |
Cronbach α | 0.95 | 0.81 | 0.95 |
Test–retest sample | Preoperative sample (n = 12) | Postoperative sample (n = 38) | |
OKS-APQ test median (25th–75th percentile) | 9.38 (0.00–29.69) | 67.19 (27.34–82.03) | |
OKS-APQ retest median (25th–75th percentile) | 15.63 (0.78–28.13) | 62.50 (21.88–78.13) | |
ICC (95% CI) | 0.63 (0.10–0.88) | 0.85 (0.72–0.92) | |
Variance components | |||
σ2p | 125.62 | 820.31 | |
σ2o | 0.00 | 2.08 | |
σ2residual | 72.02 | 147.49 | |
SEM | 8.49 | 12.23 | |
SDCind | 23.53 | 34.00 | |
SDCgroup | 6.79 | 5.52 |