In double-blind experiments…
A) Test results are unacceptable
B) Neither the participants nor experimenters know who receives the real treatment
C) Only the experimenters know who receives the real treatment
D) Placebos are not used

Question

Quizplus · Accepted Answer

In double-blind experiments, both the participants and the experimenters are unaware of who receives the real treatment versus a placebo, if one is used. This method is used to prevent bias in research results.

In Double-Blind Experiments…