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 | 1,277 | 0.89 | 79.16 | 17.61 | 0.0 | 8.6 | 88.14 | 12.11 | 0.0 | 15.8 | 8.98* | 0.74 |
3 yrs | 1,232 | 0.90 | 76.90 | 18.15 | 0.0 | 5.7 | 87.96 | 11.63 | 0.0 | 13.4 | 11.06* | 0.95 |
4 yrs | 1,177 | 0.90 | 76.03 | 19.34 | 0.0 | 4.6 | 87.37 | 12.67 | 0.0 | 14.1 | 11.34* | 0.90 |
5 yrs | 893 | 0.92 | 70.57 | 19.19 | 0.4 | 1.6 | 79.91 | 15.85 | 0.0 | 7.6 | 9.34* | 0.59 |
6 yrs | 1,105 | 0.91 | 72.98 | 17.14 | 0.0 | 2.1 | 79.74 | 15.86 | 0.0 | 5.5 | 6.76* | 0.43 |
7 yrs | 1,061 | 0.92 | 70.04 | 19.12 | 0.0 | 2.7 | 78.59 | 16.53 | 0.0 | 8.0 | 8.55* | 0.52 |
8 yrs | 1,009 | 0.92 | 72.51 | 17.58 | 0.0 | 3.4 | 80.23 | 15.94 | 0.0 | 8.9 | 7.72* | 0.48 |
9 yrs | 952 | 0.92 | 69.34 | 18.32 | 0.4 | 0.7 | 78.89 | 17.07 | 0.0 | 7.5 | 9.55* | 0.56 |
10 yrs | 955 | 0.92 | 70.23 | 18.51 | 0.0 | 2.8 | 80.68 | 15.73 | 0.0 | 8.2 | 10.45* | 0.66 |
11 yrs | 768 | 0.93 | 71.26 | 18.71 | 0.0 | 2.1 | 80.95 | 16.39 | 0.0 | 9.4 | 9.69* | 0.59 |
12 yrs | 753 | 0.93 | 68.75 | 19.14 | 0.0 | 1.5 | 80.77 | 16.39 | 0.0 | 8.7 | 12.02* | 0.73 |
13 yrs | 692 | 0.93 | 71.11 | 18.24 | 0.0 | 1.4 | 80.24 | 17.02 | 0.0 | 9.8 | 9.13* | 0.54 |
14 yrs | 633 | 0.92 | 69.09 | 18.39 | 0.0 | 1.8 | 82.32 | 14.94 | 0.0 | 9.1 | 13.23* | 0.89 |
15 yrs | 605 | 0.93 | 71.20 | 17.48 | 0.4 | 1.2 | 80.67 | 16.42 | 0.0 | 12.7 | 9.47* | 0.58 |
16 yrs | 352 | 0.93 | 69.13 | 19.35 | 0.0 | 1.0 | 82.73 | 14.43 | 0.0 | 10.9 | 13.60* | 0.94 |