Ideally, everything in an experiment except the independent variable is held constant.
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Q209: If a placebo produces the same results
Q210: When compared to other methods, an advantage
Q211: Single-blind studies are conducted in order to
Q212: The variable that an experimenter manipulates is
Q213: In a control condition, subjects are not
Q215: An experimenter's friendly smile or cold demeanor
Q216: In a single-blind experiment, participants do not
Q217: A researcher wants to know whether eating
Q218: Medical placebos usually take the form of
Q219: An association between increases in one variable
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