AP Psychologyeasymcq1 pt
A placebo effect occurs when
A.participants improve because they believe they received treatment
B.the researcher fakes the data
C.the drug is genuinely effective
D.subjects drop out of the study
Explanation
Core Concept
Expectation alone can produce real improvement, which is why double-blind designs and placebo controls are needed to isolate a treatment's true effect.
Correct Answer
Aparticipants improve because they believe they received treatment
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