Table 3.
Rates of correct main conclusions of answers in the intervention group (n = 94 answers) compared with the control group (n = 124 answers) stratified by question difficulty topic and structure
| Intervention group (online network ArboAntwoord) |
Control group (common information sources) |
Intervention vs control group |
|||||
| n/N | % | n/N | % | RD%a | 95% CIb | ||
| Total (all questions) | 85/94 | 90 | 75/124 | 61 | 29 | 19–40 | |
| Question difficulty | |||||||
| Simple | 41/47 | 87 | 40/63 | 64 | 23 | 7–38 | |
| Complex | 44/47 | 94 | 35/61 | 57 | 37 | 21–50 | |
| Question topic | |||||||
| OSHa law and regulations | 28/29 | 97 | 26/38 | 68 | 29 | 11–45 | |
| OSH content | 57/65 | 88 | 49/86 | 57 | 31 | 17–43 | |
| Question structure | |||||||
| Single | 31/31 | 100 | 31/50 | 62 | 38 | 26–52 | |
| Double | 54/63 | 86 | 44/74 | 60 | 26 | 11–40 | |
a Rate difference.
b Confidence interval.
c Occupational safety and health.