3.
当pr=0.95时不同样本量和随机评判率下各个系数偏差
Bias of agreement coefficients for different sample sizes and random rating rates with pr=0.95
| ra, rb | n | Kappa% | AC1% | CEA% |
| *: The prevalence rate pr=0.95, ra and rb represent the probability of rater A and rater B to perform a random rating respectively, N represent the sample size, relative bias of agreement coefficients is based on 10000 replicate samples. | ||||
| 20 | -39.59 | -1.27 | -1.05 | |
| ra=0.05 | 60 | -46.83 | -0.99 | -0.41 |
| rb=0.05 | 80 | -47.64 | -0.87 | -0.33 |
| 100 | -46.26 | -0.85 | -0.26 | |
| 20 | -26.10 | -0.32 | 0.18 | |
| ra=0.2 | 60 | -30.41 | -1.02 | -0.68 |
| rb=0.05 | 80 | -29.70 | -0.84 | 0.27 |
| 100 | -29.15 | -0.73 | 0.41 | |
| 20 | -36.88 | -1.39 | -0.89 | |
| ra=0.2 | 60 | -40.15 | -1.21 | 0.99 |
| rb=0.2 | 80 | -40.39 | -1.10 | 1.07 |
| 100 | -40.24 | -1.11 | 1.06 | |