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In an Experiment, One Group of Participants Is Exposed to Treatment

Question 4

Multiple Choice

In an experiment, one group of participants is exposed to treatment, another is exposed to an application identified to them as treatment, and another is not exposed to any treatment. In such a procedure, the participants who are not exposed to any form of treatment, either genuine or false, are classified as the ________ group.


A) rival
B) placebo
C) experimental
D) control

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