Several students want to determine if relaxation exercises reduce levels of test anxiety. To answer their question, they ask a group of students if they relax before taking a test. They find many students who relax say they have low levels of anxiety
What conclusion is justified from the results of their survey?
a) Relaxation should be used by students before they take exams.
b) The absence of a control group makes the findings difficult to interpret.
c) There seems to be a positive correlation between relaxing and grade point average.
d) Students who report being relaxed were probably just saying that because they were afraid.
ANS: b
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