|  |  |  |  | Convergent validity | Discriminant validity | ||
---|---|---|---|---|---|---|---|---|
 | No. items | n | Mean ± SD | α | Range of correlation | Scaling success (percent) | Range of correlation | Scaling success (percent) |
Child self-report | Â | Â | Â | Â | Â | Â | Â | Â |
Total score | 23 | 938 | 77.18 ± 13.38* | 0.85 | - | - | - | - |
Physical health | 8 | 938 | 78.32 ± 15.43* | 0.70 | 0.31-0.67 | 87 (7/8) | 0.10-0.42 | 96 (23/24) |
Emotional functioning | 5 | 938 | 68.46 ± 21.32 | 0.70 | 0.58-0.73 | 100 (5/5) | 0.21-0.37 | 100 (15/15) |
Social functioning | 5 | 938 | 85.06 ± 17.07* | 0.74 | 0.64-0.68 | 100 (5/5) | 0.19-0.42 | 100 (15/15) |
School functioning | 5 | 938 | 76.22 ± 18.78* | 0.69 | 0.59-0.71 | 100 (5/5) | 0.14-0.35 | 100 (15/15) |
Parent proxy-report | Â | Â | Â | Â | Â | Â | Â | Â |
Total score | 23 | 938 | 73.49 ± 16.65* | 0.89 | - | - | - | - |
Physical health | 8 | 938 | 72.48 ± 20.79* | 0.81 | 0.52-0.72 | 100 (8/8) | 0.25-0.46 | 100 (24/24) |
Emotional functioning | 5 | 938 | 68.62 ± 21.85 | 0.74 | 0.63-0.77 | 100 (5/5) | 0.25-0.38 | 100 (15/15) |
Social functioning | 5 | 938 | 80.03 ± 21.68* | 0.79 | 0.66-0.77 | 100 (5/5) | 0.26-0.50 | 100 (15/15) |
School functioning | 5 | 938 | 73.47 ± 20.69* | 0.70 | 0.55-0.79 | 100 (5/5) | 0.15-0.45 | 100 (15/15) |