A Common Classroom Practice Is to Have Students Exchange Their

A common classroom practice is to have students exchange their quizzes for grading.This practice is hypothesized to reduce time between quiz and feedback to students,thus resulting in higher achievement. Your history teacher, aware of your statisticalprowess, has asked you to design an experiment to test this theory. You have decidedto use the final exam (not graded by students) as your response measure. Yourhistory teacher has three classes, one early in the morning, one at noon, and one latein the afternoon. Each class contains 30 students.(a) Describe the treatments you will use in your experiment(
b) One possible confounding variable is the time of day; students may be more alertat certain times of the day than at other times. Describe a method that could beused to control this variable. Students have already been assigned their schedules,and these cannot be changed.(c) Do you feel the results of your experiment could be generalized to math classes?
Explain why or why not.