Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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Transcribed Image Text:In a double blind clinical trial for a drug
neither the subjects nor the researcher knows who is in the conrol group or the
experimantal group
both the experimental and the control group subjects get the drug that is under
trial
neither the control group nor the experimental group receive the placebo
both the groups get placebo and only the researchers are aware of this fact,
while both the groups are blinded of this fact
both the experimental and control group subjects get placebo and the drug
during any part of the study and are not aware of this double test
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In a double-blind trial, neither the volunteers nor the researchers are aware of who is receiving a certain treatment. This process is used to guard against bias in research findings.
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