Use the Follow Scenario to Answer These Questions

Multiple Choice

Use the follow scenario to answer these questions.
Archimedes read about a study that found that soft music during stressful events was soothing for many workers. He thinks that test taking is stressful for many learners and wants to conduct an experiment to determine if music playing during testing assists in student test performance. Therefore, he randomly assigns all of the introductory biology classes into one of three groups. One group that tests as usual without music, one group that listens to soft music during the test, and the final group that listens to a CD with the latest pop music tracks playing.
-Given Archimedes' study, the dependent variable is __________________.

A) biology class.
B) test performance.
C) type of music.
D) test anxiety.