Excerpt from a 2007 report published by the U.S. government’s National Academies Press summarizing research findings in social, behavioral, and health sciences regarding teen drivers.
. . . Another risk factor that affects teen drivers more than adult drivers is the need for sleep. Drivers need to be alert to stay safe on the road, yet drowsy driving is a contributing factor in accidents. In a 1995 study led by Dr. Pack of the University of Pennsylvania Medical Center, there is a peak in the teenage years for the number of crashes caused after a driver has fallen asleep at the wheel.
Teenagers typically get 7 to 7.5 hours of sleep per night, but biologically they need around 9 hours of sleep every night. Many factors work against getting enough sleep. This is a period when they may be gaining more control over their daily routine, including bedtimes, as well as acquiring more academic and social activities that lead to later nights. Wider access to electronic devices also contributes to staying up later, with a 2006 study by the National Sleep Foundation reporting that 97% of adolescents have one or more electronic devices in their bedrooms.
Question
Use the passage to answer the question.
Which adds to the credibility of the passage?
(1 point)
Responses
its discussion of peer review
its discussion of peer review
its use of up-to-date statistics
its use of up-to-date statistics
its association with a credentialled agency
its association with a credentialled agency
its inclusion of a bibliography