Original FES-I | Short FES-I | |
---|---|---|
Missing item responses | 0.9% | 0.7% |
Corrected item-total correlation, min-max | 0.59 (item 6)–0.85 (items 1 and 7) | 0.63 (item 16)–0.78 (item 7) |
Total scores, n | 92 | 96 |
Mean (SD) | 30 (12.0) | 13 (5.1) |
Min-Max | 16–59 | 7–25 |
Skewness | 0.72 | 0.71 |
Floor/ceiling effects | 10/0 | 19/0 |
Cronbach’s alpha | 0.96 | 0.89 |
ICC (95% CI) | 0.92 (0.88–0.95) | 0.91 (0.86–0.94) |
SEMa (% of possible scoring range) | 3.4 (7) | 1.6 (7) |
SEMb (% of possible scoring range) | 2.5 (5) | 1.7 (8) |
SDDc (% of possible scoring range) | 9.6 (20) | 4.3 (20) |
SDDd (% of possible scoring range) | 6.8 (14) | 4.7 (21) |