In the fall semester, a professor compared a lecture approach to teaching statistics (using a sophomore class) with a problem-oriented approach (using a senior class).Both sections were given the same final exam.The professor repeated the same experiment in the spring semester.This study shows a confounding of
A)test scores with teaching approaches.
B)class levels with test scores.
C)teaching approaches with class level.
D)semester with teaching approaches.

Question

Quizplus · Accepted Answer

The study compares two teaching approaches, lecture and problem-oriented, with two different class levels, sophomore and senior. Therefore, the study shows a confounding of teaching approaches with class level, as it is not clear whether the difference in test scores is due to the teaching approach or the class level.

In the Fall Semester, a Professor Compared a Lecture Approach