Question

Roberto wanted to examine the impact of newly enacted laws about cell phone use while driving. he did so by comparing the number of deaths due to car crashes before and after the laws were implemented. he did this in multiple provinces and compared the changes in deaths with provinces that did not implement cell phone laws in order to more clearly understand the impact of the new laws. which design did he use?

a) cost-benefit analysis
b) multiple time-series design
c) survey design
d) true experimental design

Answer 1

Roberto used a multiple time-series design to examine the impact of newly enacted laws about cell phone use while driving.

Step-by-step explanation:

Roberto used a multiple time-series design to examine the impact of newly enacted laws about cell phone use while driving. In this design, he compared the number of deaths due to car crashes before and after the laws were implemented in multiple provinces.

He also compared the changes in deaths with provinces that did not implement cell phone laws. By doing so, Roberto aimed to more clearly understand the impact of the new laws.