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 | 0.75 | 75.38 | 18.46 | 0.5 | 15.7 | 84.55 | 14.00 | 0.0 | 25.4 | 9.17* | 0.66 |
3 yrs | 1,242 | 0.77 | 75.28 | 18.07 | 0.0 | 14.8 | 83.48 | 14.52 | 0.1 | 22.2 | 8.20* | 0.56 |
4 yrs | 1,181 | 0.78 | 73.17 | 19.70 | 0.0 | 12.4 | 84.72 | 13.95 | 0.0 | 25.8 | 11.55* | 0.83 |
5 yrs | 976 | 0.79 | 71.17 | 20.59 | 0.8 | 10.5 | 79.76 | 15.88 | 0.1 | 17.9 | 8.59* | 0.54 |
6 yrs | 1,123 | 0.78 | 73.41 | 19.86 | 0.8 | 16.5 | 80.11 | 15.94 | 0.0 | 19.0 | 6.70* | 0.42 |
7 yrs | 1,082 | 0.81 | 69.74 | 21.77 | 0.4 | 13.3 | 79.64 | 16.85 | 0.1 | 21.1 | 9.90* | 0.59 |
8 yrs | 1,025 | 0.81 | 69.95 | 20.47 | 0.3 | 12.6 | 78.98 | 17.94 | 0.1 | 22.9 | 9.03* | 0.50 |
9 yrs | 968 | 0.81 | 69.10 | 20.35 | 0.7 | 9.4 | 78.88 | 17.98 | 0.3 | 19.8 | 9.78* | 0.54 |
10 yrs | 979 | 0.82 | 69.26 | 20.95 | 0.3 | 12.9 | 79.48 | 18.00 | 0.3 | 23.7 | 10.22* | 0.57 |
11 yrs | 784 | 0.83 | 67.42 | 21.88 | 0.7 | 8.2 | 80.46 | 18.02 | 0.0 | 24.8 | 13.04* | 0.72 |
12 yrs | 769 | 0.83 | 68.34 | 20.78 | 0.0 | 9.6 | 79.63 | 17.86 | 0.4 | 22.2 | 11.29* | 0.63 |
13 yrs | 702 | 0.84 | 68.43 | 21.39 | 0.7 | 10.7 | 80.32 | 18.39 | 0.0 | 24.1 | 11.89* | 0.65 |
14 yrs | 646 | 0.81 | 67.03 | 21.61 | 0.4 | 11.8 | 80.43 | 16.95 | 0.0 | 23.5 | 13.40* | 0.79 |
15 yrs | 620 | 0.85 | 69.31 | 21.96 | 0.8 | 10.0 | 79.14 | 18.86 | 0.3 | 26.8 | 9.83* | 0.52 |
16 yrs | 363 | 0.85 | 66.25 | 22.54 | 0.5 | 10.6 | 80.89 | 18.04 | 0.0 | 21.2 | 14.64* | 0.81 |