Which of the following statements is true of the placebo effect?
A) It is more likely to occur following a period of treatment with an active drug.
B) It is achieved by administering an emetic to a patient.
C) It demonstrates how different CSs in a compound stimuli receive different associative values.
D) It illustrates the functioning of operant conditioning.
Question 2
In drug research, a(n) _____ is achieved by pairing the appearance of a drug with the active ingredients of the drug.
A) overshadowing effect
B) placebo effect
C) blocking effect
D) overexpectation effect
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