How Does a Double-Blind Experiment Work

question 20

Multiple Choice

How does a double-blind experiment work?

• A)Both subject groups take turns getting each treatment.
• B)Neither subjects nor researchers know which subjects are in the control or experimental group
• C)Neither group of subjects knows whether they are in the control or experimental group, but the researchers do know.
• D)Both subject groups know whether they are in the control or experimental group, but the researchers do not know.
• E)Neither the subjects nor the persons having contact with the subjects know the true purpose of the experiment.

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