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Which type of study is most likely to involve a placebo? A. controlled experiment B. observational study C. survey
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3 votes
Which type of study is most likely to

involve a placebo?
A. controlled experiment
B. observational study
C. survey

User Ulquiomaru
by
7.3k points

1 Answer

3 votes

Answer: A. Controlled experiment

User Dozer
by
8.1k points
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