New Jersey (NJ) implemented the first Graduated Driver Licensing (GDL) decal provision in the U.S. in May 2010. An initial study reported a 1-year post-decal decrease in the crash rate among NJ intermediate drivers aged <21 years. Longer-term analysis is critical for policymakers in other states considering whether to implement a decal provision. This study, published in the American Journal of Public Health, evaluates the longer-term (2-year) effect of NJ’s decal provision on overall and age-specific crash rates of young drivers with intermediate licenses.
A study released in the American Journal of Public Health finds that young men in New York City who report they’ve been stopped and questioned by police are also reporting higher levels of trauma and stress associated with those experiences, particularly when they report that the encounters were intrusive.
Illegal drug use is a persistent problem, prescription drug abuse is on the rise, and there is clinical evidence that drug use reduces driving performance. This study describes trends in characteristics of drivers involved in fatal motor vehicle crashes who test positive for drugs, and finds that the profile of a drugged driver has changed substantially over time. An increasing share of these drivers is now testing positive for prescription drugs, cannabis, and multiple drugs.
This study was conducted with high school football and girls’ soccer athletes playing in fall 2012 and their coaches and parents in 20 urban or rural high schools in Washington State. Sixty-nine percent of concussed athletes reported playing with symptoms, and 40 percent reported that their coach was not aware of their concussion.
This research note explores complications with standard methods to evaluate place-based policing interventions. It identifies and explains issues of boundary misspecification during evaluation as a result of boundary adjustment by police during an intervention.
The study finds that three years after the passage of a concussion law in Washington State, high school football and soccer coaches are receiving substantial concussion education and have good concussion knowledge. The study also shows that concussion education for athletes and parents is more limited, and that football players receive more extensive concussion education than soccer players.
This paper describes the current state of laws across the United States aimed at combatting concussions, commonly referred to as “traumatic brain injuries” or TBIs, among young athletes. Since 2009, 47 states and Washington, DC, have passed legislation designed to reduce the long-term consequences of TBIs in youth sports.