Multiple Choice
Randomization based on covariates is
A) not of practical importance since individuals are hardly ever assigned in this fashion.
B) dependent on the covariances of the error term (serial correlation) .
C) a randomization in which the probability of assignment to the treatment group depends on one of more observable variables W.
D) eliminates the omitted variable bias when using the difference estimator based on Yi = β0 + β1Xi + ui, where Y is the outcome variable and X is the treatment indicator.
Correct Answer:
Verified
Correct Answer:
Verified
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