Definición Blind study - double-blind study

In the case of the blind study approach, participants are unaware if they are part of the experimental process or the control group. It can be used, for example, during the test phase of a new drug, where the subjects do not know if they are actually receiving it or not.

When it comes to a double-blind study, both the recipients and the doctors remain unaware of who is actually receiving the drug. Blind or double-blind studies are used to avoid distortion effects. Therefore, the views of both subjects and supervising physicians are largely excluded from the experimental process.