The importance of "Blinding" in Randomized Control TrialCreated by:
The "blinding" process in a research study means that the study participants, staff who have contact with them, persons making measurements, and those who ascertain and adjudicate the outcome do not know the study group assignments. (of intervention vs placebo, or treatment A vs treatment B). The use of "blinding" can prevent bias caused by co-interventions - medications, therapies, or behaviours other than the study intervention that change the risk of developing the outcome of interests. "Blinding" can also minimize biased ascertainment and adjudication of outcomes. In the randomized control trial, "Blinding" the intervention ia as important as randomization process, and serves to control co-interventions and biased outcome ascertainment and adjudication.