There is effect modification if the magnitude or stability of a treatment effect varies systematically with the level of an observed covariate. A larger or more stable treatment effect is typically less sensitive to bias from unmeasured covariates, so it is important to recognize effect modification when it is present. Additionally, effect modif...
Creator:
Small, Dylan (University of Pennsylvania)
Created:
2017-09-15
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.