double-blind

American  

[duhb-uhl-blahynd] / ˈdʌb əlˈblaɪnd /

adjective

1. of or relating 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.

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double-blind British  

adjective

1. 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 Compare single-blind

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Etymology

Origin of double-blind

First recorded in 1935–40

Compare meaning

How does double-blind compare to similar and commonly confused words? Explore the most common comparisons:

• single-blind vs. double-blind

Example Sentences

Lamphere and her therapists had known it was possible she would be assigned to the placebo group—the clinical trial she was in had a double-blind placebo arm; the study’s sponsors were collecting data they eventually planned to use in an FDA drug application.

From Slate

Today double-blind placebo-controlled trials are the gold standard in the FDA approval process: Participants are given either a drug or something that looks like one.

From Slate

The study is double-blind, meaning neither the patients nor the researchers know which treatment each participant receives until the trial ends.

From Science Daily

The researchers conducted a randomized, double-blind, placebo-controlled clinical trial involving 28 outpatients diagnosed with MDD at the Fourth People's Hospital of Taizhou.

From Science Daily

Double-blind means neither the patients nor the researchers knew who received which treatment, helping reduce bias.

From Science Daily