What is a blind design in research

In research, a blind procedure may be employed deliberately to enhance experimental control:Also called masking, it's a tool to reduce bias by preventing researchers and/or subjects from knowing what is going on.They also are usually unaware of what the independent and dependent variables are.The word 'blind' in 'blind experiment' refers to the fact that the research subjects and possibly the researchers themselves are unaware of which group, control or experimental, the research.The sage encyclopedia of educational research, measurement, and evaluation.Random assignment helps ensure that the groups are comparable.

Without blinding, humans tend to inadvertently corrupt studies with asymmetric measurements and assessments.In a blind or blinded experiment, information which may influence the participants of the experiment is withheld until after the experiment is complete.A single blind design would mean that the participants wouldn't know which group they're in.There are two concepts that are helpful in deciding which of these is the case.Blinding is about ensuring that participants and/or personnel within a study are unaware of a particular element of that study.