An experiment is planned to compare three methods of instruction:

Method 1: Instructor lectures three times/week

Method 2: All materials provided over the web with a weekly Question and Answer session with the instructor

Method 3: Students read materials before class and there is instructor-student discussion during the three times/week class time

Each of the three methods is evaluated with a single classroom of 25 students. The three instructors selected for the study are randomly assigned to a single classroom. The researcher will use the results of four exams given to the 75 students over the 15 week semester to compare the three methods of instruction.

a. Provided a short (100 words or less) critique of the proposed experiment.

b. Describe how the experiment could be improved?