Which of the following would not be a potential threat to internal validity in the pretest-posttest design (O₁ X O₂)? A) testing B) maturation C) history D) selection

Question

Quizplus · Accepted Answer

Selection is not a threat to internal validity in a pretest-posttest design because the same participants are typically used for both the pretest and posttest, thus controlling for differences between groups.

Which of the Following Would Not Be a Potential Threat