Which of the following research designs is used to address possible selection effects?
A) Posttest-only designs
B) Matched-groups designs
C) Pretest/posttest designs
D) All of the above address selection effects
E) None of the above address selection effects

Question

Quizplus · Accepted Answer

Matched-groups designs are used to address selection effects by ensuring that the groups being compared are equivalent at the outset of the study on relevant variables that may confound the relationship between the independent and dependent variables. Posttest-only designs and pretest/posttest designs do not necessarily address selection effects, as they do not control for potential confounding variables at the outset of the study.

Which of the Following Research Designs Is Used to Address