Which of the following designs is the "best" in terms of eliminating potential confounds?
A) nonequivalent comparison group
B) posttest-only design with nonequivalent groups
C) pretest-posttest control-group design
D) interrupted time series design

Question

Quizplus · Accepted Answer

The pretest-posttest control-group design is considered the best among the options for eliminating potential confounds because it includes both a control group and pretest measurements, allowing for a comparison of changes over time within and between groups. This design helps to control for both internal and external validity threats.

Which of the Following Designs Is the "Best" in Terms