Table 3 Ιntra–observer error. This table shows the two successive measurements of RI by the same observer and its differences. The intra-observer error in terms of 95% CI was calculated using the formula (SD/√2)/2, where SD is this of the differences. The intra–observer error was 0.0080.
From: Reliability study for the Rib Index in chest radiographs of a control group
RI 1st measurement | RI 2nd measurement | Difference |
|---|---|---|
1.33 | 1.33 | 0 |
1.41 | 1.42 | 0.01 |
1.41 | 1.44 | 0.03 |
1.79 | 1.78 | 0.01 |
1.84 | 1.81 | 0.03 |
1.95 | 1.95 | 0 |
1.72 | 1.71 | 0.01 |
1.3 | 1.34 | 0.04 |
1.71 | 1.75 | 0.04 |
1.66 | 1.67 | 0.01 |