A Researcher Plans a Study to Test the Effectiveness of the Discussion

A researcher plans a study to test the effectiveness of the discussion method in an introductory research methods course at the college level. One instructor will use the discussion method in her class several times during the semester. Another instructor will teach the same content, but without using the discussion method. The researcher will collect the following data: student scores on mid-term and final exams and on a scale measuring attitudes toward instruction. Discuss at least three recommendations that you can provide to improve this experimental design.