Wynne‐Jones 1984.

Methods	Randomised controlled trial (Students were selected by ballot within each school, stratified by sex, either to attend the driving course or to be left to their own devices to learn to drive). Method of balloting and alllocation concealment not described).
Participants	848 secondary school students aged 15 to 18 years from 23 schools in Christchurch. About 60 students were deleted from the experiment because of failure to complete correctly the enrolment form, filling out more than one form, or being selected on some other non‐random basis.
Interventions	1. The Automobile Association driver training programme: 8 hours behind the wheel instruction, 8 hours as a passenger while another student is being instructed, 8 lectures on road traffic law and correct attitudes and 2 lectures on motor mechanics (n = 561). 2. Control group: left to their own devices to learn to drive (n = 227).
Outcomes	Number of days from trial enrolment until driving license obtained (licensing delay). Accidents by self report. Accidents by official record.
Notes
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment?	Unclear risk	B ‐ Unclear