assignment to treatment group on the basis of a covariate

IMAGES

1. Treatment assignment and covariate balance.

   

2. Covariate Balance across Treatment Groups

   

3. Different relationships of covariate, treatment assignment, and...

   

4. Group assignment by treatment

   

5. Covariate-treatment interactions (expressed as multiples of minimal...

   

6. Covariate Balance between Treatment and Control Groups