Pre-experimental designs
A)are the weakest experimental designs.
B)control for most sources of internal invalidity.
C)control for most sources of external invalidity.
D)are excellent for drawing causal inferences.

Question

Quizplus · Accepted Answer

Pre-experimental designs are considered the weakest experimental designs because they lack a control group and do not control for factors that could influence the outcome. They are not very effective in drawing causal inferences.

Pre-Experimental Designs