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A study of college students showed a temporary gain of up to 9 IQ points after listening to a Mozart piano sonata. This conclusion, dubbed the Mozart effect, has since been criticized by a number of researchers who have been unable to confirm the result in similar studies. Suppose that you wanted to see whether there is a Mozart effect for students at your school. (Hint: See Examples 2.4 and 2.5.)
- a. Describe how you might design an experiment for this purpose.
- b. Does your experimental design include direct control of any extraneous variables? Explain.
- c. Does your experimental design use blocking? Explain why you did or did not include blocking in your design.
- d. What role does random assignment play in your design?
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Chapter 2 Solutions
Bundle: Introduction to Statistics and Data Analysis, 5th + WebAssign Printed Access Card: Peck/Olsen/Devore. 5th Edition, Single-Term
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