Q32. 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 four sections of Economics 200 at his university, Dr. Jones randomly assigns two sections to the traditional method and two sections to the problem-based method. At the end of the semester, all students complete the same final exam. Complete the following:

This study employs --------.

Show the basic format (template) for this design.