Glossary results: B
When a point of view prevents impartial judgment on issues relating to the subject of that point of view. In clinical studies, bias is controlled by blinding and randomization.
A randomized trial is "blind" if the participant is not told which arm of the trial he or she is in. A clinical trial is "blind" if participants are unaware whether they are in the experimental or control arm of the study; also called masked.
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