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Blinding

Blinding

Blinding is a commonly used method of not telling participants which treatment a subject is receiving. Blinding is a critical part of a randomized control trial or RCT. It reduces the bias that affects the results. In an RCT, blinding is used in the form of a placebo. A placebo effect occurs when untreated subjects falsely believe they have received the treatment and report improved symptoms. A placebo or a dummy treatment is administered to subjects to negate the bias caused by such an effect.

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Related Experiment Video

Updated: Apr 29, 2026

Randomized, Triple-Blind, and Parallel-Controlled Trial of Transcranial Direct Current Stimulation for Cognitive Rehabilitation after Stroke

Randomized, Triple-Blind, and Parallel-Controlled Trial of Transcranial Direct Current Stimulation for Cognitive Rehabilitation after Stroke

Published on: June 6, 2025

Epistemological Reflections on Integrating Data From Randomized, Open-Label, Stroke Procedural Trials Into Practice

Ronda Lun^1,2,3,4, Mayank Goyal^1,5

¹Department of Clinical Neurosciences, Calgary Stroke Program, University of Calgary, AB, Canada (R.L., M.G.).

|April 27, 2026

Summary

No abstract available in PubMed .

Keywords:

clinical trial evidence-based medicine knowledge neurology reperfusion stroke

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