What is the common purpose of using the double blinding and deception techniques?
A) they are more economical and easier to use than randomization or matching
B) they keep participants' perceptions of the experiment constant across different conditions of the experiment
C) they eliminate the effects of most known extraneous variables
D) they eliminate experimenter bias

Question

Quizplus · Accepted Answer

The purpose of using double blinding and deception techniques is to keep participants' perceptions of the experiment constant across different conditions of the experiment. This is done by keeping participants unaware of which condition they are in and by using deception to create a more realistic experience.

What Is the Common Purpose of Using the Double Blinding