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A study in which neither the subjects nor the experimenters know which subjects have received a placebo is called a ______ experiment. A. Control B. double-blind C. Response-variable D. Biased
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A study in which neither the subjects nor the experimenters know which

subjects have received a placebo is called a ______ experiment.
A. Control
B. double-blind
C. Response-variable
D. Biased

User Tanjima Kothiya
by
8.0k points

1 Answer

5 votes

Answer:

AB

Explanation:

User Mszalbach
by
7.9k points
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