In a drug study if your participants are blind as to the hypothesis under investigation and whether they received the real drug or the placebo, then the participants
A)have been randomly assigned.
B)have been randomly selected.
C)will have the same expectations.
D)will have differing expectations.

Question

Quizplus · Accepted Answer

When participants are blind to the hypothesis under investigation and whether they received the real drug or the placebo, it helps to ensure that their expectations do not influence the outcome of the study. This is because they do not know if they are receiving the treatment or the placebo, thus minimizing expectation bias.

In a Drug Study If Your Participants Are Blind as to the Hypothesis