double blind
10
5.1
- noun
- /ˈdʌbəl blaɪnd/
- Specialized
:
ensayo doble ciego
- The subjects were all selected at random in a double-blind approach.
- double blind trial
- double blind study
- double blind design
So it's a true blind, a double-blind, double-blind, double-blind, like a study, right?
- So it's a true blind, a double-blind, double-blind, double-blind, like a study, right?
- So the double-blind is in theory is terrific, but in practice it doesn't always work quite as well.
Examples
-
The 2,304 children from 15 schools, selected through double-blind random sampling, were examined for dental caries and oral hygiene status.
Academic text (2007) -
This has been now done in several double-blind placebo-controlled studies.
-
A prospective double-blind trial was the only type expected to provide relevant information.
Academic text (1992) -
Their standard is higher, requiring critical double-blind tests that meet certain scientific criteria.
Blog text (30) -
The gold standard in empirical studies is a double-blind randomized controlled experiment.
Academic text (2017) -
We're conducting a double-blind, placebo-controlled randomized trial throughout the United States.
-
The study was designed as a randomised, placebo-controlled, double-blind efficacy trial.
Academic text (2000) -
The study was a multicenter, randomized, double-blind, placebo-controlled trial.
Academic text (1996) -
Taking DHA 900 mg/day has been shown to improve memory in one double-blind placebo-controlled study.
Blog text (9) -
In a double blind trial, neither the volunteers nor the researchers know who receives the actual treatment.
Synonyms
2
4.2
An experiment where neither participants nor researchers know who gets the real treatment or a fake one to avoid bias
An experiment where neither the people nor the researchers know who gets the real medicine
An experiment where neither the participants nor the researchers know who is in which group
Antonyms
How Blind
- Specialized
10
5.1
- Specialized
1
6.8
Surface Forms
Morphology
The meaning is directly compositional: 'double' (twofold) modifies 'blind' (unaware), so a B1 learner who knows both words can infer that two parties are unaware of treatment allocation. This modifier+noun pattern is common in English and many languages (e.g. 'double-blind' trials), making the term immediately predictable from its parts.
Etymology
Double blind is a term that gives a simple image: two people are blind to who gets the real treatment, so 'double' means two. That's why a double blind test keeps both the patient and the researcher from knowing who gets the treatment and helps 'prevent bias'.