A psychology professor wants to test the effectiveness of providing students in his introductory experimental psychology class with an outline with his weekly lecture notes. He forms two groups within his class, each containing 24 students. The experimental group receives an outline of the professor’s weekly lectures, and the control group receives no outline. Grades at the end of the semester are compared between the two groups. On the basis of this description, discuss what flaw is most evident in the design of the experiment. Identify and design and discuss an alternative procedure that might eliminate the flaws.
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