Double Blind Trial
- August 22, 2021
- Posted by: OptimizeIAS Team
- Category: DPN Topics
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Double Blind Trial
Subject – Science and Tech
Context – Year later, many participants of vaccine trials await certification.
Concept –
- A type of clinical trial in which neither the participants nor the researcher knows which treatment or intervention participants are receiving until the clinical trial is over.
- Double blind studies prevent bias when doctors evaluate patients’ outcomes. This improves reliability of clinical trial results.
- The aim of this is to minimize the placebo effect and minimize bias.
- This differs from other types of trials, such as simple blind trials where only the patients are unaware of the treatment they are receiving, whereas the doctors know.
- Double-blind trials are a form of randomized trials and can be ‘upgraded’ to triple-blind trials, in which the statisticians or data clean-up personnel are also blind to treatments.