A placebo is aA) member of the control group.B) pill with effects opposite to those of an experimental drug.C) nonblind observer.D) pill with no important biological effects.

Question

A placebo is aA)  member of the control group.B)  pill with effects opposite to those of an experimental drug.C)  nonblind observer.D)  pill with no important biological effects.

matin jamili · Accepted Answer

Final Answer : D, Explanation :  A placebo is a pill or other substance that has no important biological effects and is used as a control in experiments to test the efficacy of an intervention. It is given to the control group to ensure that any observed effects of the intervention are not simply due to a placebo effect.

A placebo is a

A) member of the control group.
B) pill with effects opposite to those of an experimental drug.
C) nonblind observer.
D) pill with no important biological effects.

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