更改

:* 给定任何的平衡函数，具体来说，给定倾向性评分，处理分配也是强可忽略的：

:* 给定任何的平衡函数，具体来说，给定倾向性评分，处理分配也是强可忽略的：

:::<math> (r_0, r_1) \perp Z \mid e(X).</math>

:::<math> (r_0, r_1) \perp \!\!\!\! \perp Z \mid e(X).</math>

回归

回归

:*For any value of a balancing score, the difference between the treatment and control means of the samples at hand (i.e.: <math>\bar{r}_1-\bar{r}_0</math>), based on subjects that have the same value of the balancing score, can serve as an [[Bias of an estimator|unbiased estimator]] of the [[average treatment effect]]: <math>E[r_1]-E[r_0]</math>.

:*For any value of a balancing score, the difference between the treatment and control means of the samples at hand (i.e.: <math>\bar{r}_1-\bar{r}_0</math>), based on subjects that have the same value of the balancing score, can serve as an [[Bias of an estimator|unbiased estimator]] of the [[average treatment effect]]: <math>E[r_1]-E[r_0]</math>.