Self-report measures
| Measure | # Items | Administration |
| Demographics—Parent (age, gender, race, ethnicity, family income, education, relation to child) | 7 | Baseline |
| Demographics—Child (age, gender, race, ethnicity, birth order) | 5 | Baseline |
| Attitudes/Beliefs about restraints: Is your restraint correctly installed? | 1 | Baseline, post, follow-up |
| Attitudes/Beliefs about restraints: Can you install correctly? | 1 | Baseline, post, follow-up |
| Attitudes/Beliefs about restraints: Is restraint installation difficult? | 1 | Baseline, post, follow-up |
| Attitudes/Beliefs about restraints: Will your child be injured in crash? | 1 | Baseline, post, follow-up |
| Restraint behaviours: Previous help from technicians | 1 | Baseline, post, follow-up |
| Restraint behaviours: Use of instruction manual | 1 | Baseline, post, follow-up |
| Restraint behaviours: Use of car seat (frequency) | 1 | Baseline, post, follow-up |
| Perceived efficacy of training | 6 | Post, follow-up |