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double-blind
1 ENTRIES FOUND:
Learner's definition of DOUBLE-BLIND
technical
— used to describe an experiment that is done so that neither the people who are doing the experiment nor the people who are the subjects of the experiments know which of the groups being studied is the control group and which is the test group双盲的（指实验中的实验者与受试者均不知晓哪一组为控制组，哪一组为实验组）
- a double-blind drug trial双盲药物试验
double-blind
adjective
dou·ble-blind ˌdə-bəl-ˈblīnd 
: 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
Word History
First Known Use
1950, in the meaning defined above
Time Traveler
The first known use of double-blind was in 1950 👨🏻🏫 Mr. Ng 韋氏詞典 📚 – mw.mister5️⃣.net
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