How do you describe a clinical trial,in which subjects do not know which treatment they are receiving,but the researchers do?

Question

Quizplus · Accepted Answer

In a single-blind clinical trial, the subjects do not know whether they are receiving the experimental treatment or a placebo, but the researchers do know which treatment each subject is receiving. This helps to prevent bias in the subjects' responses.

How Do You Describe a Clinical Trial,in Which Subjects Do