Which of the following is NOT a method for trying to prevent a participant characteristic (such as age or gender)from becoming a confounding variable in a between-subjects experiment?
A)Hold the participant characteristic constant.
B)Randomly assign participants to treatment conditions.
C)Randomly select the participants from the population.
D)Match the groups with respect to the participant characteristic.

Question

Quizplus · Accepted Answer

Randomly selecting participants from the population would not necessarily address the issue of a participant characteristic becoming a confounding variable. Instead, one would need to either hold the characteristic constant, randomly assign participants to treatment conditions, or match the groups with respect to the characteristic, in order to control for its potential effects.

Which of the Following Is NOT a Method for Trying