Which of the following is NOT a reason a researcher might choose to conduct a double-blind placebo control group study?
A)To examine possible placebo effects
B)To control for observer bias
C)To prevent attrition
D)To control for demand characteristics

Question

Quizplus · Accepted Answer

A double-blind placebo control group study would not be done to prevent attrition; rather, it would be done to control for placebo effects, observer bias, and demand characteristics. Attrition (or dropout) can be minimized through other methods such as carefully selecting participants and providing incentives for completing the study.

Which of the Following Is NOT a Reason a Researcher