Experimenter bias can best be controlled using ________.
A)a placebo
B)double-blind control
C)randomization
D)subjects who do not know the purpose of the study

Question

Quizplus · Accepted Answer

Double-blind control is the most effective way to control experimenter bias. In a double-blind control, both the experimenter and the participants are unaware of which group is receiving the treatment and which is receiving the placebo. This eliminates any potential for the experimenter to influence the results. Randomization and having subjects who do not know the purpose of the study can also help reduce bias, but they are not as effective as double-blind control.

Experimenter Bias Can Best Be Controlled Using ________