Table 2.
Descriptive statistics for the CDQ.
| Characteristics | Measure | Emotional (7–49) |
Social (7–49) |
Worries (5–35) |
|
|---|---|---|---|---|---|
| Score | Mean ± SD | 27.2 ± 9.6 | 36.1 ± 9.7 | 19.6 ± 6.1 | |
| 95% CI | (26.2–28.2) | (34.9–37.3) | (19.6–20.4) | ||
| Median | 26.0 1 | 38.0 1 | 19.0 1 | ||
| Min–max | 7.0–49.0 | 8.0–49.0 | 6.0–35.0 | ||
| 25th–75th | 22–33 | 29–45 | 14–24 | ||
| Data quality | Floor effect | % | 1 | 0 | 0 |
| Ceiling effect | % | 1 | 20 | 2 | |
| Scaling assumptions | Item internal consistency | Item-scale correlation (corrected for overlap) | 0.41–0.66 | 0.38–0.74 | 0.25–0.48 |
| Pearson item-scale correlation ≥ 30% 2 | 100% | 100% | 80% | ||
| Internal consistency reliability | Cronbach’s alpha | 0.88 | 0.88 | 0.74 | |
1 non-parametric distribution (verified using Shapiro-Wilk test—p ≤ 0.05); 2 according to Everitt & Skrondal [28].