Yes, the data is there. The studies have been done. Texting is the most dangerous distraction.by an order of magnitude.
“Conducted by the Virginia Tech Transportation Institute, the study revealed that texting was, by a wide margin, the most hazardous driver distraction.
“Texting was, on its own, by far the most dangerous thing,” said Dr. Rich Hanowski, director of VTTI’s Center for Truck and Bus Safety in Blacksburg, Va.
Fumbling around in the cab for an electronic device was next on the list of dangerous distractions, followed by dialing a cell phone. Having a cell phone conversation, while less risky than reaching for or dialing the phone, still increased the odds of a crash, VTTI said.
The common thread linking the most distracting behaviors was failure to watch the road. ” Source
“Even a cursory glance at the statistics is evidence enough that swift, comprehensive action must be taken on a national level to curb this reckless, potentially deadly, behavior: Driving while using a cell phone incurs a fourfold greater risk of crashing, equivalent to driving while drunk (with a 0.08 blood-alcohol level). For texters, the risk is eight times greater.” Source
“Extensive research shows the dangers of distracted driving. Studies say that drivers using phones are four times as likely to cause a crash as other drivers, and the likelihood that they will crash is equal to that of someone with a .08 percent blood alcohol level, the point at which drivers are generally considered intoxicated. Research also shows that hands-free devices do not eliminate the risks, and may worsen them by suggesting that the behavior is safe.
A 2003 Harvard study estimated that cellphone distractions caused 2,600 traffic deaths every year, and 330,000 accidents that result in moderate or severe injuries.”
Source
NTSA Study.