What it means
Blinding reduces bias from expectations and from how outcomes are judged. Studies can be single-blind (participants only), double-blind or triple-blind.
Blinding matters most for subjective outcomes, such as how skin looks or feels. A trial can be randomized and controlled but still unblinded.
Also known as
- double blind
- blinded trial
- single-blind
- triple-blind
Sources
General information, not medical advice. Talk to a clinician about any decision about your health.