In order to keep experimental staff from subtly conveying their enthusiasm for an experimental program to subjects, experimenters may

Question

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Double-blind procedures ensure that neither the experimenter nor the subjects know who is receiving the treatment, which helps to eliminate any potential bias or influence on the results. This is the most effective way to keep experimental staff from conveying their enthusiasm. Blind procedures (A) only mask the treatment from the subjects, and may not prevent experimenter enthusiasm from being conveyed. Double-blind procedures (B) are useful, but not as effective as a double-blind procedure where neither the experimenter nor the subjects know who is receiving the treatment. Changing the experimental process altogether (D) is not necessary if double-blind procedures can be implemented effectively.

In Order to Keep Experimental Staff from Subtly Conveying Their