The experimenter effect can best be controlled by using __________.
A) a placebo
B) a double-blind study
C) randomization
D) subjects who do not know the purpose of the study

Question

Quizplus · Accepted Answer

The experimenter effect refers to the unintentional influence that the experimenter may have on the study participants or results. To control for this effect, a double-blind study is the best option. In a double-blind study, neither the participants nor the researchers know which group is receiving the treatment or placebo, which helps to control for any potential biases or expectations from the experimenter. Placebos, randomization, and blinding participants to the purpose of the study are also important strategies for controlling for other sources of bias, but they do not specifically address the experimenter effect.

The Experimenter Effect Can Best Be Controlled by Using __________