# How many seconds does it take for a driver to respond when a leading car hits the brakes?Describe the explanatory and response variables in the study

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? a. Describe the explanatory and response variables in the study. b. What are the treatments? c. What should you consider when selecting participants? d. 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? e. Identify any lurking variables that could interfere with this study. f. How can blinding be used in this study?

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A. The explanatory variable is whether the test subject is texting and driving or simply driving. The response variable is the amount of time it takes the driver to respond to the car in front of them hitting the brakes.
B. There are two treatments: requiring a driver to text while driving and requiring a driver to not text while driving.
C. You should consider the age of the driver, the level of skill of the driver, and the previous driving history of the driver.
D. Dividing the participants randomly is a good idea, as it gets rid of the lurking variables. However, this experiment must be done in controlled area, not simply out on the road, as the results could be dangerous to other drivers.
E. Some lurking variables could include the level of skill of the driver, the frequency in which the driver normally texts and drives, and the previous driving history of the driver.