What Is a "Placebo" in Experimental Research

question 58

Multiple Choice

What is a "placebo" in experimental research?

• A)When an experimenter deceives subjects about the experiment’s true nature,then later tells them what it is really about
• B)When subjects in a control group are treated the same as the subjects receiving the treatment
• C)When subjects in the control group receive a false or empty treatment so they do not adjust their behaviour to confirm the experimenter’s hypothesis
• D)When neither the subjects nor an assistant helping the experimenter know specifics about the treatment or how hypothesis is being tested
• E)When an event outside the experiment’s control occurs during the experiment and affects the dependent variable

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