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When subjects in an experimental group put a puzzle piece in the wrong place, the experimenter unconsciously tapped his feet. The experimenter did not tap his feet when subjects in the control group placed a puzzle piece in the wrong place. One method to eliminate the tapping of the experimenter is by instituting

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BlueSky06
The appropriate response is the double-blind procedure. A double-blind study is one in which neither the members nor the experimenters know who is getting a specific treatment. This technique is used to avert predisposition in research comes about. Twofold visually impaired reviews are especially helpful for averting inclination because of interest qualities or the misleading impact.

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