But a previous national study found that nearly 92% of teens still regularly engage in texting, talking or dialing in tunes on their smartphone while behind the wheel, researchers said. For the new study, researchers quizzed more than 1,100 teenagers about their behaviors and beliefs surrounding smartphone use while driving.

Teenage drivers have admitted to looking at their cell phones one-fifth of the time when they're behind the wheel, most commonly to be entertained, text or follow a map, a new study published in the Traffic Injury Prevention journal shows.

Phones can help with navigation on roadtrips, but they can also be dangerous distractions. A new study shows just how big that distraction is among teen drivers, and the number one reason the phones are used has nothing to do with directions.