What is the advantage of a double-blind experimental design?
A) The effects of extraneous variables are not eliminated but they are spread evenly across groups.
B) It makes the demand characteristics the same for participants in all conditions and eliminates the possibility that the experimenter unintentionally signals the expected outcome to the participants.
C) It increases confidence that the data are being interpreted in an unbiased manner.
D) It makes it impossible for the participant to discover the hypothesis and assures that the data are interpreted in terms of what actually happened, not in terms of what "should" have happened.

Question

Quizplus · Accepted Answer

Double-blind experimental designs help in minimizing bias by ensuring that neither the participants nor the experimenters know who is receiving a particular treatment. This approach helps in eliminating the possibility that the experimenter unintentionally influences the participants with their expectations about the outcomes of the experiment.

What Is the Advantage of a Double-Blind Experimental Design