A music professor offers his 40 students the option of coming to an additional rehearsal session theweek before their juries (musical final exams.) In order to decide whether these extra sessions actuallyhelp students, he keeps track of who attends them and compares their jury scores to those of students who did not schedule extra sessions. In this study, a difference was found between the scores of students who scheduled the extra sessions and those of students who didn't attend(higher average for students with extra sessions). Does this study give evidence that attending the review session leads to higher grades on their juries? A) Yes, becuase the study relied on a common final exam fro everyone B)No, because the students chose whether they attended the review session or not C) Yes becuase the study included both students who attned the review session and those who did not D)Yes, becuase the number of subjects in the study was large E)No, becuase the students in the study were not blinded
A music professor offers his 40 students the option of coming to an additional rehearsal session theweek before their juries (musical final exams.) In order to decide whether these extra sessions actuallyhelp students, he keeps track of who attends them and compares their jury scores to those of students who did not schedule extra sessions. In this study, a difference was found between the scores of students who scheduled the extra sessions and those of students who didn't attend(higher average for students with extra sessions). Does this study give evidence that attending the review session leads to higher grades on their juries?
A) Yes, becuase the study relied on a common final exam fro everyone
B)No, because the students chose whether they attended the review session or not
C) Yes becuase the study included both students who attned the review session and those who did not
D)Yes, becuase the number of subjects in the study was large
E)No, becuase the students in the study were not blinded
It's a type of observational study. An observational study is one in which all the participants are subjected to a common treatment and then compared to people who did not receive the same treatment. This is the case with students who were subjected to the same treatment: an additional rehearsal session. They are then observed by the professor and compared to those who did not participate in the experiment.
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