A double-blind study of a vaccine is one in which : The study group receives the vaccine and the control group receives a placebo. Neither observer nor subjects know the nature of the placebo. Neither observer nor subjects know which subject receives the vaccine and which receives a placebo. Neither the study group nor the control group knows the identity of the observers. The control group does not know the identity of the study group.

Question

Taryn Lambert

Biology

7 June, 21:09

A double-blind study of a vaccine is one in which : The study group receives the vaccine and the control group receives a placebo. Neither observer nor subjects know the nature of the placebo. Neither observer nor subjects know which subject receives the vaccine and which receives a placebo. Neither the study group nor the control group knows the identity of the observers. The control group does not know the identity of the study group.

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Answers (1)

Know the Answer?

Holly Hanson · Answer 1

Neither observer nor subjects know which subject receives the vaccine and which receives a placebo

Explanation:

In a double-blind study neither the participants nor the experimenters is aware of who is receiving a particular treatment.

Its used to prevent bias in research results from demand characteristics or the placebo effect