How does conducting a double-blind study attempt to remedy the experimenter expectancy effect?

Question

Quizplus · Accepted Answer

Double-blind studies help reduce the experimenter expectancy effect by preventing both the participants and the experimenters from knowing who receives the treatment and who receives the placebo, thus reducing confirmation bias where researchers might unconsciously influence outcomes based on their expectations.

How Does Conducting a Double-Blind Study Attempt to Remedy the Experimenter