Respuesta :
Answer:
Blind Study
Step-by-step explanation:
The answer is blind study because in a double blind study neither the subjects or the researchers know the control group. in an open study everyone knows who is in the control group.
Answer:
Blind Study
Step-by-step explanation:
Blinded study: A study done in such a way that the patients or subjects do not know (is blinded as to) what treatment they are receiving to ensure that the results are not affected by a placebo effect
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