. . . on reflection, maybe I'm getting my Q-bars mixed up. Centering a covariate in each imputed dataset removes the between-imputation variance for the mean, but not for the regression coefficient. Correct? Bill H.
. . . on reflection, maybe I'm getting my Q-bars mixed up. Centering a covariate in each imputed dataset removes the between-imputation variance for the mean, but not for the regression coefficient. Correct? Bill H.