TABLE A5.
Single Confounder Removal: simulation results for λ(−Xj) using nonparametric estimation with n = 2000;
Variable | 1 | 2 | 3 | 4 | 5 |
---|---|---|---|---|---|
Setting 1 | |||||
Truth | −0.149 | −0.097 | −0.081 | −0.084 | −0.019 |
Estimate | −0.106 | −0.057 | −0.050 | −0.046 | 0.004 |
Bias | −0.043 | −0.040 | −0.030 | −0.038 | −0.023 |
ESE | 0.015 | 0.014 | 0.010 | 0.009 | 0.006 |
Setting 2 | |||||
Truth | −0.145 | −0.007 | −0.076 | −0.007 | −0.015 |
Estimate | −0.109 | 0.007 | −0.053 | 0.007 | −0.001 |
Bias | −0.036 | −0.013 | −0.024 | −0.015 | −0.014 |
ESE | 0.015 | 0.003 | 0.010 | 0.004 | 0.004 |
Setting 3 | |||||
Truth | −0.187 | −0.105 | −0.015 | −0.142 | −0.031 |
Estimate | −0.122 | −0.052 | 0.020 | −0.080 | 0.003 |
Bias | −0.065 | −0.053 | −0.035 | −0.062 | −0.034 |
ESE | 0.016 | 0.011 | 0.010 | 0.016 | 0.007 |
Setting 4 | |||||
Truth | −0.188 | −0.134 | −0.125 | −0.123 | −0.062 |
Estimate | −0.105 | −0.057 | −0.049 | −0.045 | 0.004 |
Bias | −0.084 | −0.077 | −0.076 | −0.078 | −0.066 |
ESE | 0.015 | 0.014 | 0.010 | 0.009 | 0.006 |
ESE = empirical standard error (standard deviation of estimates across the 1,000 replications)