If you have a choice between investigating the same question with ex post facto research or with experimental research choose
A) ex post facto research.
B) experimental research.

Question

Quizplus · Accepted Answer

Experimental research allows for greater control over variables and can establish cause-and-effect relationships, whereas ex post facto research can only establish correlations. Therefore, if the goal is to investigate causal relationships, experimental research is the better choice.

If You Have a Choice Between Investigating the Same Question