Consider a completely randomized experiment in which a control group is given a

Question

Consider a completely randomized experiment in which a control group is given a placebo for congestion relief and a treatment group is given a new drug for congestion relief. Describe a double-blind procedure for this experiment. What are some benefits of such a procedure? (Select all that apply.)

A.This process should eliminate potential bias from the patients' families.

B.This process should eliminate potential bias from the treatment administrators.

C.This process should eliminate potential bias from patient psychology regarding benefits of the drug.

D.This process should eliminate potential bias from the researchers.

Explanation / Answer

Answer:

Consider a completely randomized experiment in which a control group is given a placebo for congestion relief and a treatment group is given a new drug for congestion relief. Describe a double-blind procedure for this experiment. What are some benefits of such a procedure? (Select all that apply.)

B.This process should eliminate potential bias from the treatment administrators.

C.This process should eliminate potential bias from patient psychology regarding benefits of the drug.

A double-blind procedure would entail neither the patients nor those administering the treatments knowing which patients received which treatments. This process should eliminate potential bias from the treatment administrators and from patient psychology regarding benefits of the drug

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