double-blind

adjective

dou·​ble-blind ˌdə-bəl-ˈblīnd How to pronounce double-blind (audio)
: of, relating to, or being an experimental procedure in which neither the subjects nor the experimenters know which subjects are in the test and control groups during the actual course of the experiments compare open-label, single-blind

Examples of double-blind in a Sentence

Recent Examples on the Web
These examples are automatically compiled from online sources to illustrate current usage. Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
In a subsequent double-blind study, one group of pregnant women were given choline supplements and the other placebos. Daliah Singer, Smithsonian Magazine, 9 Oct. 2024 The new double-blind Canadian study of doxyPrEP enrolled 52 gay and bisexual men and evenly randomized them to receive doxycycline or a placebo. Benjamin Ryan, NBC News, 18 July 2024 The second was a 2007 double-blind trial that found a 5 percent tea tree oil gel to be more effective than a placebo in reducing acne severity. Trisha Pasricha, Washington Post, 15 July 2024 The first data from Gilead Science’s PURPOSE 1 Phase 3, double-blind, randomized trial, was extremely promising. New Atlas, 15 July 2024 But to Lamb’s knowledge, no double-blind placebo studies have shown that any substance applied topically will boost beta-endorphin or serotonin production, either locally in people’s skin or throughout the nervous system broadly. Hannah Seo, The Atlantic, 10 July 2024 For one thing, the experts, along with the FDA, found that the double-blind trials were essentially unblinded—both therapists and participants knew whether participants received MDMA, given the potent effects of the drug. Beth Mole, Ars Technica, 4 June 2024 An herbal supplement containing Ma Huang-Guarana for weight loss: a randomized, double-blind trial. Amber Smith, Discover Magazine, 3 Apr. 2024 The double-blind clinical study was conducted at North Carolina State University Veterinary College, a leading vet school. Alex Zhavoronkov, Forbes, 29 Feb. 2024

Word History

First Known Use

1950, in the meaning defined above

Time Traveler
The first known use of double-blind was in 1950

Dictionary Entries Near double-blind

Cite this Entry

“Double-blind.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/double-blind. Accessed 12 Nov. 2024.

Medical Definition

double-blind

adjective
dou·​ble-blind ˌdəb-əl-ˈblīnd How to pronounce double-blind (audio)
: of, relating to, or being an experimental procedure in which neither the subjects nor the experimenters know which subjects are in the test and control groups during the actual course of the experiments compare open-label, single-blind
Last Updated: - Updated example sentences
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