Back to 1.4 Experimental Design and Ethics

1.4 Exercise 4

Avg difficulty 2.5

You are concerned about the effects of texting on driving performance. Design a study to test the response time of drivers while texting and while driving only. How many seconds does it take for a driver to respond when a leading car hits the brakes?

  1. Describe the explanatory and response variables in the study.
  2. What are the treatments?
  3. What should you consider when selecting participants?
  4. Your research partner wants to divide participants randomly into two groups: one to drive without distraction and one to text and drive simultaneously. Is this a good idea? Why or why not?
  5. Identify any lurking variables that could interfere with this study.
  6. How can blinding be used in this study?

OpenStax Statistics, 1.4 Experimental Design and Ethics, exercise 4

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