double-blind

double-blind

[duhb-uhl-blahynd]
adjective
of or pertaining to an experiment or clinical trial in which neither the subjects nor the researchers know which subjects are receiving the active medication, treatment, etc., and which are not: a technique for eliminating subjective bias from the test results.

Origin:
1935–40

double bind, double-blind.
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World English Dictionary
double-blind
 
adj
Compare single-blind of or relating to an experiment to discover reactions to certain commodities, drugs, etc, in which neither the experimenters nor the subjects know the particulars of the test items during the experiments

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