An Experimental Group Listened to 10 Minutes of a Mozart

question 314

Multiple Choice

An experimental group listened to 10 minutes of a Mozart sonata, a control group listened to 10 minutes of relaxation to instructions, while the other control group listened to silence. The Mozart group performed much better on a subsequent test of spatial abilities than the two control groups. The results of this experiment are not valid because

• A)10 minutes is an inadequate amount of time.
• B)There could be confounding variables.
• C)The amount of time is not indicated for the group who listened to silence.
• D)There are two control groups.

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