single-blind

[ sing-guh l-blahynd ]
/ ˈsɪŋ gəlˈblaɪnd /

adjective

of or relating to an experiment or clinical trial in which the researchers but not the subjects know which subjects are receiving the active medication or treatment and which are not: a technique for eliminating subjective bias, as the placebo effect, from the test results.

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Origin of single-blind

First recorded in 1960–65
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for single-blind

single-blind

adjective

of or relating to an experiment, esp one to discover people's reactions to certain commodities, drugs, etc, in which the experimenters but not the subjects know the particulars of the test items during the experimentCompare double-blind
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012