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Table 8 Intertester and Intratester Reliability
| Test 1 | Test 2 | Test 3 | Test 4 | Test 5 | |
|---|---|---|---|---|---|
| Intertester A vs Ba | |||||
| Matches (%) | 22/30 (73%) | 21/30 (70%) | 21/30 (70%) | 21/30 (70%) | 18/29 (62%) |
| weighted kappa (95% CIb) | 0.52 (0.17–0.86) | 0.71 (0.53–0.89) | 0.68 (0.44–0.92) | 0.66 (0.46–0.86) | 0.52 (0.21–0.81) |
| Intratester A | |||||
| Matches (%) | 25/30 (83%) | 25/30 (83%) | 25/29 (86%) | 23/30 (77%) | 18/29 (62%) |
| weighted kappa (95% CIa) | 0.76 (0.62–0.91) | 0.80 (0.63–0.96) | 0.87 (0.75–0.99) | 0.78 (0.64–0.93) | 0.56 (0.32–0.80) |
| Intratester B | |||||
| Matches (%) | 24/30 (80%) | 16/30 (53%) | 16/30 (53%) | 21/30 (70%) | 16/29 (55%) |
| weighted kappa (95% CI) | 0.55 (0.21–0.88) | 0.35 (0.07–0.63) | 0.55 (0.33–0.76) | 0.61 (0.40–0.82) | 0.55 (0.34–0.76) |
