Age | Reliability | Validity | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Chronic Health Condition | Healthy Sample | |||||||||||
N | α | Mean | SD | % Floor | % Ceiling | Mean | SD | % Floor | % Ceiling | Chronic vs. Healthy Difference | Chronic vs. Healthy Effect Size | |
2 yrs | 1,282 | 0.81 | 79.90 | 15.34 | 0.0 | 10.7 | 86.83 | 12.41 | 0.0 | 19.6 | 6.93* | 0.56 |
3 yrs | 1,239 | 0.81 | 77.32 | 16.29 | 0.0 | 7.8 | 86.41 | 12.16 | 0.1 | 16.0 | 9.09* | 0.75 |
4 yrs | 1,178 | 0.82 | 75.98 | 17.79 | 0.0 | 6.9 | 86.17 | 12.34 | 0.0 | 16.1 | 10.19* | 0.83 |
5 yrs | 897 | 0.87 | 71.66 | 18.30 | 0.4 | 2.3 | 79.87 | 15.15 | 0.0 | 8.8 | 8.21* | 0.54 |
6 yrs | 1,111 | 0.86 | 73.02 | 16.49 | 0.0 | 3.7 | 79.37 | 15.26 | 0.0 | 7.3 | 6.35* | 0.42 |
7 yrs | 1,063 | 0.88 | 69.61 | 18.56 | 0.0 | 3.0 | 78.08 | 16.11 | 0.0 | 8.9 | 8.47* | 0.53 |
8 yrs | 1,011 | 0.87 | 71.66 | 17.10 | 0.0 | 3.7 | 78.82 | 16.04 | 0.0 | 10.4 | 7.16* | 0.45 |
9 yrs | 958 | 0.87 | 68.98 | 17.68 | 0.4 | 0.7 | 77.39 | 16.81 | 0.0 | 9.2 | 8.41* | 0.50 |
10 yrs | 964 | 0.88 | 69.35 | 18.72 | 0.0 | 3.4 | 78.83 | 16.14 | 0.0 | 9.6 | 9.48* | 0.59 |
11 yrs | 769 | 0.88 | 70.18 | 18.13 | 0.0 | 3.2 | 80.00 | 16.22 | 0.0 | 11.0 | 9.82* | 0.61 |
12 yrs | 757 | 0.90 | 68.51 | 18.28 | 0.0 | 1.8 | 79.86 | 16.18 | 0.0 | 10.8 | 11.35* | 0.70 |
13 yrs | 693 | 0.89 | 70.91 | 18.45 | 0.0 | 2.4 | 79.07 | 17.18 | 0.0 | 11.3 | 8.16* | 0.47 |
14 yrs | 633 | 0.89 | 68.76 | 18.35 | 0.0 | 3.9 | 81.08 | 15.11 | 0.0 | 11.4 | 12.32* | 0.82 |
15 yrs | 611 | 0.89 | 70.22 | 17.85 | 0.4 | 1.2 | 79.62 | 16.51 | 0.0 | 15.9 | 9.40* | 0.57 |
16 yrs | 354 | 0.89 | 68.98 | 19.38 | 0.0 | 3.5 | 81.23 | 14.75 | 0.0 | 11.5 | 12.25* | 0.83 |