A design in which the participants in the experimental and control groups are related in some way is a _____ design.
A)correlated-groups
B)between-subjects
C)across-subjects
D)none of the options is correct

Question

Quizplus · Accepted Answer

In a correlated-groups design, the participants in the experimental and control groups are related in some way, such as being matched on key variables or serving as their own control group. This design is often used to increase the precision and power of the study by reducing variability between the groups. Options B and C refer to between-subjects and within-subjects designs, respectively, which do not involve related groups. Option D is incorrect as one of the options must be correct.

A Design in Which the Participants in the Experimental and Control