Table 2.
Internal reliability (Cronbach alpha) of each questionnaire by site.
| Measure (no. of items) | Australia (N = 25) | Canada (N = 21) | China (N = 77) | New Zealand (N = 33) | South Africa (N = 28) | United Kingdom (N = 10) | Total (N = 194) |
|---|---|---|---|---|---|---|---|
| CYRM-28 (28) | 0.831 | 0.869 | 0.926 | 0.929 | 0.874 | 0.333 | 0.904 |
| CD-RISC (25) | 0.811 | 0.896 | 0.932 | 0.925 | 0.916 | 0.792 | 0.929 |
| WEMWBS (14) | 0.829 | 0.877 | 0.922 | 0.896 | 0.840 | 0.537 | 0.898 |
| COMPAS-W (26) | 0.824 | 0.850 | 0.900 | 0.861 | – | – | 0.883 |
| DASS-21 (21) | 0.769 | 0.921 | 0.948 | 0.912 | 0.905 | 0.854 | 0.931 |
| SDQ (20) | 0.843 | 0.861 | 0.812 | 0.862 | 0.811 | 0.846 | 0.823 |
| CRAFFT (6) | 0.480 | 0.310 | – | 0.782 | 0.727 | 0.107 | 0.721 |
CYRM-28, Child and Youth Resilience Measure; CD-RISC, Connor-Davidson Resilience Scale; WEMWBS, Warwick-Edinburgh Mental Well-being Scale; COMPAS-W, COMPAS-W Wellbeing Scale; DASS-21, Depression, Anxiety, Stress Scale; SDQ, Strengths and Difficulties Questionnaire; and CRAFFT, CRAFFT Screening Tool for Adolescent Substance Abuse. “–” reflects missing data due to China not administering the CRAFFT, and South Africa/United Kingdom not administering the COMPAS-W.