Answer the question.
-Which of the following describes a study in which the patients do not know whether they are receiving the treatment or the placebo but the experimenters do know?
A)Case-control study
B)Observational study
C)Double-blind experiment
D)Single-blind experiment

Question

Quizplus · Accepted Answer

In a single-blind experiment, the participants do not know whether they are receiving the actual treatment or a placebo, but the researchers do know. This setup helps to reduce bias from participants' expectations.

Answer the Question. -Which of the Following Describes a Study in Which the in Which