Professor Gelbe tested a new method of teaching reading to third graders. Over the course of the school year, the reading scores of Professor Gelbe's participants showed clear increases. A potential problem with the design of this study is
A) maturation.
B) statistical regression.
C) selection.
D) mortality.

Question

Quizplus · Accepted Answer

Maturation refers to changes that occur naturally over time, such as cognitive development or physical growth. In this case, the increase in reading scores could be attributed to the natural maturation process rather than the new teaching method. Therefore, maturation is a potential problem with the design of this study.

Professor Gelbe Tested a New Method of Teaching Reading to Third