# Propensity Score for observations in RCT study

In theory what would the $$e_i$$ (propensity scores) be, for $$n_i$$ observations already randomized into various treatment groups ?

I know $$e_i$$ (propensity scores) are calculated for $$n_i$$ observations in observation studies and RCT studies are assumed to be already randomized.

However I like to know what would be the hypothetical $$e_i$$ (propensity scores) values for observations in studies that already randomize patients into various treatment groups ? Could the propensity score values for everybody in an already randomized study would be 1 ?