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Based on observing more than 400 drivers in the Atlanta area, two investigators at Georgia State University concluded that people exiting parking spaces did so more slowly when a driver in another car was waiting for the space than when no one was waiting (“Territorial Defense in Parking Lots: Retaliation Against Waiting Drivers,” Journal of Applied Social Psychology [1997]: 821-834).
- a. Describe how you might design an experiment to determine whether this phenomenon is true for your city.
- b. What is the response variable?
- c. What are some extraneous variables and how does your design control for them?
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