Dr. Kauth wanted to test the impact of sleep on student learning. If students receive at least 8 hours of sleep then their test scores will improve. He asked for volunteers from a local college. The students were informed of the experiment and signed a consent form. Dr. Kauth’s researcher put the participants name in a computer and the computer selected the assignments for the participants. Out of the 100 students, 50 students were told to get at least 8 hours of sleep on school nights. The other 50 students were told to keep a journal of the amount of sleep they received each school night. No restrictions were put on the amount of sleep they were to receive. The students were to submit the grades they received during the month they were participating in the experiment as well as their grades prior to the study. Dr. Kauth was not aware of which participants received 8 hours of sleep versus those that received 6 hours of sleep. None of the participants were aware of the other participants.