Blinding« Back to Glossary Index
Blinding is a way of making sure that the people involved in a research study, such as the participants in clinical trials, do not know which trial arm they are assigned to. For example, in a trial with one treatment arm and one placebo arm, blinding means that the participants do not know if they are receiving the treatment or the placebo.
Sometimes the term ‘single-blind’ is used to describe studies where the participants are unaware of which arm they are in, but the research team does know. In a double-blind trial, both the research team and participants do not know which participant is assigned to which arm.
A blind trial is the opposite of an open or open-label trial.« Back to Glossary Index