| Methods |
Cluster randomised controlled trial
(Allocation within strata of state high schools, secondary technical schools, catholic secondary schools, independent secondary schools, employers of young men, technical colleges).
Method of allocation concealment not described. |
| Participants |
779 males aged 17 to 19 years holding a current learner permit and living in the Melbourne area. |
| Interventions |
1. Shepparton On‐Road (SN): 11 hours of theoretical instruction, 5 hours on‐road and off‐road driving and 6 hours in‐car observation (n = 188).
2. Shepparton Off‐Road (SF): 11 hours of theoretical instruction, 5 hours off‐road driving and 6 hours in‐car observation (n = 178).
3. Royal Automobile Club of Victoria (RACV): 2 hours theoretical instruction and 5 hours off‐road driving (n = 217).
4. Control group: no formal training but were allowed to arrange driving practice or lessons during the course of the study (n = 196). |
| Outcomes |
Proportion of participants having at least one accident since being licensed. |
| Notes |
|
| Risk of bias |
| Bias |
Authors' judgement |
Support for judgement |
| Allocation concealment? |
Unclear risk |
B ‐ Unclear |
