Double-blinding in experiments is important so that
I. The evaluators do not know which treatment group the participants are in.
II. The participants do not know which treatment group they are in.
III. No one knows which treatment any of the participants is getting.
A) I only
B) III only
C) II only
D) I, II, and III
E) I and II

Question

Quizplus · Accepted Answer

Double-blinding ensures that both the evaluators and the participants are unaware of the treatment assignments, reducing bias and placebo effects.

Double-Blinding in Experiments Is Important So That