Dr.Dow Jones wants to know whether a problem-based approach to teaching economics will result in higher academic performance than his traditional method.Of the six sections of Economics 101 at his university, Dr.Jones randomly assigns three sections to the traditional method and three sections to the problem-based method for Unit 1 of the course.Then all sections switch instructional method for Unit 2.He plans to compare the performance of the two groups of sections on their Unit 1 and Unit 2 exams.This study employs a ______ design.
A)within subjects (repeated measures)
B)quasi-experimental
C)true experimental
D)ex post facto

Question

Quizplus · Accepted Answer

This is a within-subjects design because the same group of students is being tested under both the traditional and problem-based methods. This allows for direct comparison of the two methods, as each student is acting as his or her own control. The study is also employing a repeated measures design because each group is being tested twice, once under each method.

DrDow Jones Wants to Know Whether a Problem-Based Approach to Teaching