Results of knowledge and attitude assessment
| Outcome measure | Baseline (N=289) | Postintervention (N=289) | Cohen's d baseline to postintervention | Re-evaluation (N=151) | Cohen's d postintervention to re-evaluation | p Value | |
|---|---|---|---|---|---|---|---|
| Knowledge mean | 86% | 96% | 1.0 | 93% | 0.42 | < 0.001 | |
| SD 9.8% | SD 5.8% | SD 7.3% | |||||
| Repeated samples ANOVA | Range 50–100 | Range 80–100 | Range 65–100 | ||||
| Attitudes SAQ | |||||||
| Friedman's | Safety climate (median) | 69.2 | 73.1 | 0.38 | 75.0 | 0.03 | < 0.001 |
| SD 14.6 | SD 15.6 | SD 15.8 | |||||
| Teamwork climate (median) | 73.2 | 78.6 | 0.30 | 76.8 | 0.02 | < 0.001 | |
| SD 13.4 | SD 13.3 | SD 16.7 | |||||
| Overall (median) | 71.3 | 75.9 | 0.31 | 74.1 | 0.01 | < 0.001 | |
| SD 12.5 | SD 13.6 | SD 14.4 | |||||
ANOVA, Analysis of Variance; SAQ, Safety Attitudes Questionnaire.