Quisley's Hypothesis Is That Listening to Classical Music Improves Intellectual

question 182

Multiple Choice

Quisley's hypothesis is that listening to classical music improves intellectual performance. He randomly divided a mathematics class into two rooms. In room A, music by Mozart played softly in the background during a lecture. In room B, the students listened to a lecture without background music. The independent variable is

• A)whether music played during a lecture.
• B)mathematical performance.
• C)the level of mathematics taught.
• D)present only in the control group.