Maybe I'm not reading this right. For the following sentence in Chapter 11:
This estimator is called the Inverse Probability of Treatment Weighting (IPTW), since it scales each unit by the probability of receiving some treatment other than the one it received.
I see in the formula that the treated is being scaled by 1/p(x) where p(x) is the probability of treated, while the untreated is being scaled by 1/(1-p(x)) where 1-p(x) is the probability of untreated.
Shouldn't the sentence read:
This estimator is called the Inverse Probability of Treatment Weighting (IPTW), since it scales each unit by the inverse probability of the treatment it received.
Maybe I'm not reading this right. For the following sentence in Chapter 11:
I see in the formula that the treated is being scaled by 1/p(x) where p(x) is the probability of treated, while the untreated is being scaled by 1/(1-p(x)) where 1-p(x) is the probability of untreated.
Shouldn't the sentence read: