Which Is the BEST Reason for Using a Placebo as Part

question 36

Multiple Choice

Which is the BEST reason for using a placebo as part of the experimental design?

• A)Because it makes it impossible for researchers to know who is receiving an intervention and who is not.
• B)Because the only way to know if the treatment works is to compare it to a placebo.
• C)Because it prevent subjects from knowing whether or not they are receiving the treatment.
• D)Because it allows the incorporation a larger number of subjects in the experiment.

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