The purpose of a double-blind study is:
A) to eliminate experimenter effects.
B) to increase experimental effects.
C) to test the effects of a placebo.
D) to determine the visual ability of newborn infants.

Question

Quizplus · Accepted Answer

The purpose of a double-blind study is to eliminate experimenter effects, which can bias the results of the study. This occurs when the experimenter's expectations or biases influence the outcome of the study. In a double-blind study, both the participants and the researchers are unaware of which group is receiving the treatment or the placebo, reducing the risk of bias. Therefore, choice A is the correct answer. Choices B, C, and D are not accurate as they do not describe the purpose of a double-blind study.

The Purpose of a Double-Blind Study Is