From: On the use of propensity scores in case of rare exposure
Method | y | n | Bias | V ratio | RMSE | 1-coverage | % match |
---|---|---|---|---|---|---|---|
PSW-ATE | 10 | 364 | 0.056 | 0.914 | 0.406 | 0.091 | Â |
 | 20 | 728 | 0.028 | 0.982 | 0.271 | 0.065 |  |
 | 30 | 1092 | 0.018 | 1.009 | 0.216 | 0.057 |  |
PSW-ATT | 10 | 364 | 0.026 | 0.983 | 0.321 | 0.060 | Â |
 | 20 | 728 | 0.013 | 1.019 | 0.222 | 0.047 |  |
 | 30 | 1092 | 0.008 | 1.031 | 0.180 | 0.046 |  |
PS-matching | 10 | 364 | 0.051 | 0.925 | 0.473 | 0.062 | 99.0 |
 | 20 | 728 | 0.026 | 0.964 | 0.316 | 0.056 | 99.5 |
 | 30 | 1092 | 0.017 | 0.990 | 0.250 | 0.053 | 99.7 |