Experiments in which neither the subjects nor the researchers know who has been given the treatment and who has not are known as ______ studies.
A) single blind
B) double blind
C) tertiary
D) strain

Question

Quizplus · Accepted Answer

Double-blind studies are experiments in which neither the subjects nor the researchers know who has been given the treatment and who has not. This is done to prevent any potential bias in the results, as the researchers may unintentionally influence the outcomes by their expectations or beliefs. The use of a placebo, or a fake treatment, is often employed in double-blind studies to further ensure that any observed effects are due to the treatment itself and not just the placebo effect.

Experiments in Which Neither the Subjects nor the Researchers Know