Table 4 Internal consistency and test-retest reliability of the SC-FJS
Item | Mean score ± SD | Item-total correlation | Alpha if item removed | ICC values (CIs range) |
|---|---|---|---|---|
1 | 3.44 ± 0.81 | 0.601 | 0.902 | 0.91 (0.88–0.94) |
2 | 3.37 ± 0.91 | 0.656 | 0.899 | 0.88 (0.83–0.91) |
3 | 2.71 ± 1.20 | 0.670 | 0.897 | 0.88 (0.84–0.92) |
4 | 2.73 ± 1.05 | 0.636 | 0.899 | 0.86 (0.81–0.90) |
5 | 3.31 ± 0.93 | 0.683 | 0.898 | 0.89 (0.85–0.92) |
6 | 2.33 ± 1.22 | 0.654 | 0.898 | 0.90 (0.86–0.93) |
7 | 2.30 ± 1.15 | 0.640 | 0.899 | 0.92 (0.88–0.94) |
8 | 1.89 ± 1.28 | 0.631 | 0.899 | 0.91 (0.87–0.93) |
9 | 1.57 ± 1.40 | 0.650 | 0.899 | 0.93 (0.90–0.95) |
10 | 2.02 ± 1.43 | 0.762 | 0.893 | 0.95 (0.93–0.97) |
11 | 1.70 ± 1.45 | 0.678 | 0.897 | 0.91 (0.88–0.94) |
12 | 1.76 ± 1.27 | 0.476 | 0.907 | 0.93 (0.90–0.95) |