Blind
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A person who is unable to see visually is called blind.
Clinical studies[edit | edit source]
- A randomized trial is "blind" if the participant is not told which arm of the trial he is on.
- A clinical trial is "Blind" if participants are unaware on whether they are in the experimental or control arm of the study. It is also called masked.
- A procedure in which one or more parties to the trial are kept unaware of the treatment assignment(s).
- Single blinding usually refers to the subject(s) being unaware
- Double blinding usually refers to the subject(s), investigator(s), monitor, and, in some cases, data analyst(s) being unaware of the treatment assignment(s).
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