A psychology professor feels that her students will do better on her exams if music is playing while they take their exams. To test her hypothesis she divides her class in half. One half takes the exam in a room with music playing and the other half takes the exam in a similar room but without the music playing. In this case, the dependent variable is
a)
the room the exam is taken in.
b)
the absence or presence of music playing.
c)
the exam.
d)
the students' scores on the exam.
d)
the students' scores on the exam.
Recall the test phrase, "How ________(i.v.) affects __________ (d.v.). The professor is testing "How music affects student test scores." The dependent variable is the subjects' responses. The room the test is taken in and the test itself should be the same for both groups.
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