Background: Motor vehicle crashes are the leading cause of adolescent death. Cell phone use while driving is a contributor to adolescent motor vehicle crash risk. Objective and directly observable measures of cell phone use while driving are needed to implement interventions aimed at reducing cell phone-related crash risk. Aims: To describe novel…

"Pregaming" or "pre-loading" is what college students call the practice of drinking alcohol in a private setting prior to attending an organized event or social activity where alcohol might or might not be served. According to one student, "Pregames are usually a fun part of the night because you're just with a few close…