Running head: Double-blind Control ExperimentNameInstitutional Affiliation:Date:Double- blind control experiment: A review of definition and applicationDouble-blind control Experiment2A double-blind study is defined as a controlled study where both the study subjects andthose conducting the experiment do not know which subject is assigned to any particulartreatment. Those conducting the experiment who need to blinded include those whoundertake to administer the treatment and those who will assess the outcome of the study.This definition holds true without considering the blinding status of other groups ( Miller &Stewart, 2011)Double-blind control studies are commonly done by researchers when conductinginterventional studies such as random controlled trials for drugs, medical equipment ornutritional supplements. For instance, when conducting a random controlled study about theefficacy of drug X, the researchers may give the drug and a placebo at random to two differentgroups without either the subjects or the researchers knowing what is given to who and thencomparing the outcomes. Double-blinding helps avoid selection bias, self report bias andobserver bias, ...
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