A between-subjects experiment comparing four treatment conditions produces 20 scores in each treatment condition. How many individuals participated in the entire experiment?
A) 1
B) 4
C) 20
D) 80

Question

Quizplus · Accepted Answer

Since there are 20 scores in each treatment condition, and there are four treatment conditions, the total number of participants is 20 times 4, which equals 80. Therefore, the correct answer is D.

A Between-Subjects Experiment Comparing Four Treatment Conditions Produces 20 Scores