Table 2.
Intrarater and interrater agreement in the measure of extension.
| Measure | Mean | SD | Cronbach's alpha (intrarater reliability) | Pearson's product-moment correlation coefficient | ICC (interrater and intrarater reliability) | 95% CI | Agreement | ||
|---|---|---|---|---|---|---|---|---|---|
| Extension | 1A 3A |
84.17 90.87 |
11.14 15.17 |
0.85 | 0.77 | 0.644 | 0.303 | 0.813 | High |
| 2P 4P |
88.33 89.63 |
15.75 13.36 |
0.89 | 0.81 | 0.796 | 0.656 | 0.883 | Very high | |
| 1A 2P |
84.17 88.33 |
11.14 15.75 |
— | 0.89 | 0.808 | 0.628 | 0.898 | Very high | |
| 3A 4P |
90.87 89.63 |
15.17 13.36 |
— | 0.89 | 0.878 | 0.787 | 0.931 | Very high | |