What is the term for an imitation treatment that has no known physical effect or therapeutic value on the subjects in a research study?
A. theory
B. placebo
C. single-blind trial
D. double-blind trial
Answer:B
What is the term for an imitation treatment that has no known physical effect or therapeutic value on the subjects in a research study?
A. theory B. placebo C. single-blind trial D. double-blind trial