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

question 99

Multiple Choice

Quisley's hypothesis is that listening to classical music improves intellectual performance.He randomly divides a mathematics class into two rooms.In room A,music by Mozart plays softly in the background during a lecture.In room B,the students listen 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.

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