title: Using an event-triggered video intervention system to expand the supervised learning of newly licensed adolescent drivers.
abstract: OBJECTIVE
  We examined whether feedback from an event-triggered video intervention system reduced the number of safety-relevant driving errors made by newly licensed adolescents.
  
  
  METHODS
  We used a 1-group pretest-posttest quasi-experimental design to compare the rate of coachable error events per 1000 miles for 18 drivers who were aged 16 years. The intervention consisted of immediate visual feedback provided to the drivers and weekly event reports and videos provided to the drivers and their parents.
  
  
  RESULTS
  The number of coachable events was reduced by 61% overall during the intervention (chi(2) = 11.42; P = .001) and did not significantly increase during the second baseline, which was assessed after the intervention ended (chi(2) = 1.49; P = .223). The greatest reduction was seen in the category of improper turns or curves and for drivers identified at the first baseline as "high-event" drivers.
  
  
  CONCLUSIONS
  Our results show that immediate visual feedback for adolescents and cumulative video feedback for parents and adolescents during the early period of independent driving can have a dramatic influence on the rate of safety-relevant driving events. To the extent that such events are a proxy for crash risk, we suggest that feedback can enhance adolescent driving safety.
authors.affiliation: Human Factors and Vehicle Safety Research Division of the Public Policy Center, University of Iowa, Iowa City, USA.
authors.forename: Cher
authors.initials: C
authors.lastname: Carney
authors.forename: Daniel V
authors.initials: DV
authors.lastname: McGehee
authors.forename: John D
authors.initials: JD
authors.lastname: Lee
authors.forename: Michelle L
authors.initials: ML
authors.lastname: Reyes
authors.forename: Mireille
authors.initials: M
authors.lastname: Raby
mesh_terms: D000063:Accidents, Traffic / Q000517:prevention & control; D000293:Adolescent; D001334:Automobile Driving / Q000193:education / Q000592:standards; D030141:Feedback, Psychological; D005260:Female; D006801:Humans; D008297:Male; D008910:Minnesota; D010290:Parents; D012309:Risk-Taking; D012449:Safety; D014741:Video Recording
references.citation: Accid Anal Prev. 2003 Sep;35(5):683-91
references.pmid: 12850069
references.citation: Health Educ Res. 1999 Dec;14(6):765-75
references.pmid: 10585384
references.citation: JAMA. 2001 Oct 3;286(13):1588-92
references.pmid: 11585481
references.citation: Inj Prev. 2005 Feb;11(1):24-8
references.pmid: 15691985
references.citation: Am J Health Behav. 2001 Jan-Feb;25(1):10-20
references.pmid: 11289724
references.citation: J Safety Res. 2007;38(2):203-13
references.pmid: 17478191
references.citation: Eval Health Prof. 2006 Mar;29(1):33-64
references.pmid: 16510879
references.citation: Inj Prev. 2002 Sep;8 Suppl 2:ii24-30; discussion ii30-1
references.pmid: 12221027
references.citation: J Safety Res. 2007;38(2):165-75
references.pmid: 17478187
references.citation: JAMA. 2001 Oct 3;286(13):1593-8
references.pmid: 11585482
references.citation: J Safety Res. 2007;38(2):215-27
references.pmid: 17478192
references.citation: J Safety Res. 2003 Jan;34(1):5-15
references.pmid: 12535901