In drug-treatment studies,double-blind procedures minimize outcome differences between experimental and control conditions that could be attributed to
A) replication.
B) operational definitions.
C) random sampling.
D) placebo effects.

Question

Quizplus · Accepted Answer

Double-blind procedures are used in drug-treatment studies to minimize the placebo effect, which is a potential confounding variable that could result in outcome differences between the experimental and control conditions. By keeping both the participants and the experimenter blind to who is receiving the treatment and who is receiving the placebo, any observed differences in outcomes can be more confidently attributed to the actual effects of the drug rather than any placebo effect. Replication, operational definitions, and random sampling, while important considerations in psychological research, are not directly related to the use of double-blind procedures in drug-treatment studies.

In Drug-Treatment Studies,double-Blind Procedures Minimize Outcome Differences Between Experimental and Control