Which true experimental design controls for all internal threats to internal validity?
A)Solomon four group
B)pretest to post-test with control
C)simulated pretest - post-test
D)post-test only with control

Question

Quizplus · Accepted Answer

The Solomon four group design controls for all internal threats to internal validity by including two experimental groups and two control groups, both with and without pretests. This design effectively tests the experimental treatment while accounting for any preexisting differences between the groups. The other designs listed do not control for all internal threats to internal validity.

Which True Experimental Design Controls for All Internal Threats to Internal