Raters |
ICC(1.1) |
95% CI |
ICC(3.1) |
95% CI |
Sw |
SDD |
Intra-rater |
|
|
|
|
|
|
A1-A2 |
0.94 |
0.87-0.97 |
0.97 |
0.94-0.99 |
1.6 |
4.4 |
B1-B2 |
0.99 |
0.98-0.99 |
0.99 |
0.97-1.00 |
0.7 |
2.0 |
C1-C2 |
0.96 |
0.92-0.98 |
0.97 |
0.93-0.99 |
1.1 |
3.2 |
Inter-rater |
|
|
|
|
|
|
A1-B1 |
0.97 |
0.94-0.99 |
0.97 |
0.94-0.99 |
1.0 |
2.9 |
A1-C1 |
0.97 |
0.93-0.99 |
0.97 |
0.93-0.99 |
1.1 |
3.2 |
B1-C1 |
0.99 |
0.97-0.99 |
0.99 |
0.97-0.99 |
0.8 |
2.3 |
A1-B1-C1 |
0.98 |
0.95-0.99 |
0.98 |
0.95-0.99 |
1.0 |
2.8 |
A1, B1, C1 refer to the first scores of the three raters. A2, B2, C2 refer to the second
scores (four weeks later).
ICC: intraclass correlation coefficient. CI: confidence interval. Sw: within subject
standard deviation. SDD: smallest detectable difference for 95% of pairs of
observations. |