Texting while driving is dangerous and causes injuries and fatalities. A team of researchers studied whether typing text messages, reading them, or a combination of both, while driving affect eye movements, stimulus detection, reaction time, collisions, lane positioning, speed and headway significantly. A total sample of 977 participants from 28 experimental studies was considered in the investigation. Results show that typing and reading text messages while driving adversely affected driver control ability. Typing text messages alone produced similar decrements as typing and reading, whereas reading alone had smaller decrements over fewer dependent variables. This meta-analysis provides convergent evidence that texting compromises the safety of the driver, passengers, and other road users.

a. What is the main question in this statistical experiment?

b. Identify the explanatory variable, treatments, response variables, and experimental units.

c. What measures can be taken to prevent road accidents?