noun phrase · academic
double-blind study
/ˌdʌbəlˈblaɪnd ˈstʌdi/dou·ble·BLIND STU·dy
a trial in which neither participants nor researchers know who receives the real treatment, to prevent bias
Examples
“The drug was tested in a double-blind study to ensure unbiased results.”
“Double-blind studies are standard for evaluating new medications.”
“To reduce placebo effects, the trial was double-blind.”
Band 8 sentence
“Regulatory bodies typically require double‑blind studies to support claims of efficacy for new drugs.”
Collocations
- double-blind clinical trial
- conduct a double-blind study
Word family
Common mistakes
double blind trial→double-blind trial
double blind study where researchers know→double-blind study
Say it for a higher band
5blinded trial→6masked trial→7+double-blind study
Synonyms
masked trial
Easily confused
single-blind study
“In a single-blind study the participants are unaware of their treatment assignment.”
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In Science & Research
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