Research participants and research staff are unaware of which participants received a placebo and which participants received an actual drug.This illustrates
A) naturalistic observation.
B) illusory correlation.
C) a confounding variable.
D) the double-blind procedure.

Question

Quizplus · Accepted Answer

The fact that both the research participants and the research staff are unaware of which participants received a placebo and which participants received an actual drug illustrates the use of the double-blind procedure. In this procedure, neither the participants nor the researchers know which group is receiving the actual treatment, thus preventing any bias or expectation from influencing the results. This helps to control for the placebo effect and increase the validity of the study's findings.

Research Participants and Research Staff Are Unaware of Which Participants