Answer:
Double blind study
Explanation:
A double-blind investigation is one in which neither the members nor the one performing the experiments realize who is getting a specific treatment.
This method is used to counteract inclination in research results.
Double blind examinations are especially helpful for anticipating predisposition because of interest qualities or the placebo impact.
Answer:
PAST TENSE: When my friend came in i read a novel.
A. I think cream puff pastries have very interesting shapes, none are the same and they are quiet tasty. ლ(´ڡ`ლ)