New multivariate tests for assessing covariate balance in matched observational studies
New multivariate tests for assessing covariate balance in matched observational studies
We propose new tests for assessing whether covariates in a treatment group and matched control group are balanced in observational studies. The tests exhibit high power under a wide range of multivariate alternatives, some of which existing tests have little power for. The asymptotic permutation null distributions of the proposed …