The placebo is a control group in which participants are exposed to a fake independent variable, or placebo.
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Q148: The double-blind technique is used to guard
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Q150: Any change in performance that results from
Q151: The dependent variable is also called the
Q152: In an experiment, the group of participants
Q154: The experimental group (or experimental condition) is
Q155: The purpose of the double-blind technique is
Q156: Extraneous variables are factors other than the
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Q158: The placebo effect is any change attributed
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