Use the following information for questions:
Decide if the study is an observational study or an experiment.
-Thirty-six students were randomly assigned to listen to Mozart (18 students) or a relaxation tape (18 students). The IQ of the students were measured afterwards.
A) Observational Study
B) Experiment

Question

Use the following information for questions:
 Decide if the study is an observational study or an experiment.
-Thirty-six students were randomly assigned to listen to Mozart (18 students) or a relaxation tape (18 students). The IQ of the students were measured afterwards.
A) Observational Study
B) Experiment

Quizplus · Accepted Answer

This is an experiment because the students were randomly assigned to different groups (Mozart or relaxation tape) and then their IQs were measured, indicating a deliberate manipulation of the independent variable (type of audio listened to).

Use the Following Information for Questions