@PowerUp_Tutoring thank you so much!

@reneemac980 So, if the author concludes, based on sufficient evidenced, that only that only two choices remain, is it a true dichotomy?

#help

So, since group 2 didn't receive a placebo, could we assume that the researchers / observers were not blinded and knew which group was getting the treatment vs. not? I just want to make sure I am not assuming something that I shouldn't be!