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 | 1,290 | 0.87 | 77.68 | 24.25 | 1.0 | 24.4 | 90.04 | 15.07 | 0.2 | 38.9 | 12.36* | 0.82 |
3 yrs | 1,238 | 0.87 | 76.17 | 25.05 | 0.8 | 19.3 | 90.07 | 14.24 | 0.0 | 37.6 | 13.90* | 0.98 |
4 yrs | 1,184 | 0.89 | 76.01 | 24.91 | 1.8 | 19.8 | 89.23 | 17.00 | 0.0 | 42.6 | 13.22* | 0.78 |
5 yrs | 975 | 0.88 | 68.79 | 26.36 | 1.2 | 11.3 | 79.94 | 20.64 | 0.0 | 23.8 | 11.15* | 0.54 |
6 yrs | 1,119 | 0.87 | 73.31 | 23.87 | 0.4 | 14.0 | 80.37 | 20.76 | 0.0 | 21.9 | 7.06* | 0.34 |
7 yrs | 1,084 | 0.88 | 70.88 | 26.23 | 1.1 | 14.4 | 79.52 | 21.35 | 0.0 | 23.3 | 8.64* | 0.40 |
8 yrs | 1,025 | 0.88 | 74.25 | 23.98 | 0.6 | 15.0 | 82.91 | 19.93 | 0.0 | 31.1 | 8.66* | 0.43 |
9 yrs | 963 | 0.89 | 70.47 | 24.86 | 1.8 | 12.6 | 81.52 | 21.85 | 0.0 | 32.0 | 11.05* | 0.51 |
10 yrs | 973 | 0.88 | 72.13 | 24.29 | 0.9 | 14.1 | 84.18 | 19.11 | 0.2 | 32.1 | 12.05* | 0.63 |
11 yrs | 783 | 0.90 | 73.29 | 25.16 | 1.4 | 12.8 | 82.66 | 20.95 | 0.2 | 31.2 | 9.37* | 0.45 |
12 yrs | 765 | 0.89 | 69.33 | 25.30 | 0.4 | 8.5 | 82.36 | 20.86 | 0.0 | 27.6 | 13.03* | 0.62 |
13 yrs | 701 | 0.89 | 71.50 | 23.63 | 1.4 | 12.0 | 82.37 | 21.67 | 0.0 | 32.2 | 10.87* | 0.50 |
14 yrs | 646 | 0.90 | 69.70 | 24.99 | 0.7 | 8.6 | 84.52 | 19.86 | 0.0 | 31.3 | 14.82* | 0.75 |
15 yrs | 617 | 0.88 | 72.95 | 22.16 | 0.4 | 8.4 | 82.43 | 20.48 | 0.0 | 30.0 | 9.48* | 0.46 |
16 yrs | 361 | 0.89 | 69.01 | 25.74 | 0.5 | 9.6 | 85.61 | 18.07 | 0.0 | 31.5 | 16.60* | 0.92 |