A Statistical Analysis Plan describes a clinical trial as "A 12 week, double-blind, placebo-controlled, randomized, multi-center study." Double-blind refers to which groups in this study?
Hmm, let me think... I'll go with B. Double-blind just means the people administering and taking the treatment are both clueless. Keeps things nice and impartial.
C'mon, this is a classic double-blind study question. Of course it's B! The statistician and sponsor shouldn't be blinded, but the investigators and subjects need to be in the dark.
Definitely B. It's all about making sure there's no bias in the study. If the investigators and subjects don't know who's getting what, the results are much more reliable.
Definitely B. It's all about making sure there's no bias in the study. If the investigators and subjects don't know who's getting what, the results are much more reliable.
The correct answer is B) investigator and subjects. In a double-blind study, neither the participants nor the researchers know who is receiving the treatment or the placebo.
B: Actually, it's B) investigator and subjects. In a double-blind study, neither the participants nor the researchers know who is receiving the treatment or the placebo.
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