If no subjects dropped out of a pretest-posttest study, one threat to validity that you wouldn't have to worry about is:
A) history
B) maturation
C) mortality
D) testing

Name: If no subjects dropped out of a pretest-posttest study, one threat to validity that you wouldn't have to worry about is: A) history B) maturation C) mortality D) testing
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Question

Quizplus · Accepted Answer

Mortality refers to participants dropping out of a study, so if no subjects dropped out, this threat is not a concern.

If No Subjects Dropped Out of a Pretest-Posttest Study, One