When Testing the Perceptual Effects of Music Training, Why Should

question 40

Multiple Choice

When testing the perceptual effects of music training, why should a researcher use random assignment of participants to a musical group or control activity?

• A) Participants are usually equally glad to be assigned to any kind of activity.
• B) Otherwise, the direction of causation is questionable, since those in the music group may already have superior listening skills that made them more likely to want to play music.
• C) Random assignment makes the music group more diverse.
• D) Random assignment minimizes individual differences within each group, making the groups easier to reason about.

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Definitions:

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