A placebo is:
A) a fake substance, treatment, or procedure that has no known direct effects.
B) the dependent variable in an experiment testing drug effects.
C) a statistical technique used to eliminate errors in measurement.
D) a drug that is supplied to the experimental groups.
Correct Answer:
Verified
Q211: When evaluating research claims it is important
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Q213: A placebo effect is:
A)a change in a
Q214: A natural experiment is a study that:
A)investigates
Q215: Which of the following four steps are
Q217: In a study on the effects of
Q218: Functional magnetic resonance imaging (fMRI):
A)combines the ability
Q219: Experiments can provide important information, but they
Q220: One limitation of naturalistic experiments is that:
A)they
Q221: Gomez wanted to investigate the effects of
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