Table 4.
Descriptive information and Cronbach’s alpha of Skindex-29 and Skindex-16
| No. of items (score range) | Mean | SD | Percentile | % floor | % ceiling | Corrected item-total correlation | Cronbach’s α | |||
|---|---|---|---|---|---|---|---|---|---|---|
| 25 | 50 | 75 | ||||||||
| Chinese version of Skindex-29 | ||||||||||
| Emotions | 10(0–100) | 49.0 | 25.0 | 30.0 | 50.0 | 67.5 | 3.2 | 0.9 | 0.63-0.82 | 0.94 |
| Symptoms | 7(0–100) | 37.2 | 21.1 | 17.9 | 35.7 | 53.6 | 3.2 | 0.0 | 0.50-0.67 | 0.85 |
| Functioning | 12(0–100) | 36.8 | 24.6 | 14.6 | 35.4 | 55.2 | 5.0 | 0.0 | 0.56-0.84 | 0.95 |
| Total | 29(0–100) | 41.1 | 22.1 | 23.7 | 40.5 | 55.2 | 1.4 | 0.0 | 0.50-0.83 | 0.97 |
| Chinese version of Skindex-16 | ||||||||||
| Emotions | 7(0–100) | 54.4 | 31.1 | 28.6 | 54.8 | 83.3 | 2.8 | 11.1 | 0.73-0.88 | 0.94 |
| Symptoms | 4(0–100) | 36.2 | 28.2 | 12.5 | 29.2 | 50.0 | 8.3 | 3.7 | 0.62-0.78 | 0.86 |
| Functioning | 5(0–100) | 36.1 | 30.1 | 6.7 | 30.0 | 60.0 | 15.3 | 6.5 | 0.83-0.88 | 0.94 |
| Total | 16(0–100) | 44.3 | 27.2 | 21.4 | 42.7 | 64.6 | 2.3 | 2.3 | 0.60-0.85 | 0.96 |
SD, Standard Deviation.