Table 3 Proposed scoring system of Landis and Koch (Biometrics 1977 [22]) for rating of the Kappa statistic
Kappa statistic | Strength of agreement |
|---|---|
<0.00 | Poor |
0.00–0.20 | Slight |
0.21–0.40 | Fair |
0.41–0.60 | Moderate |
0.61–0.80 | Substantial |
0.81–1.00 | Almost perfect |