Randomisation and incentive eligibility
| Cluster-level randomisation | Individual-level randomisation | Incentive eligibility |
| Education Incentive Treatment Arm (50% of the enumeration areas) | Education Incentive Only Sub-arm (aimed for 25% of the total sample) | Participants were eligible for a financial incentive when enrolling in school or starting tertiary education year, a short course, a course at a technical college, or vocational training, or upgrading classes, and regularly attending or completing any of these forms of education |
| Education Incentive and Raffle Sub-arm (aimed for 25% of the total sample) | Participants were eligible for a financial incentive when enrolling in school or starting tertiary education year, a short course, a course at a technical college, or vocational training, or upgrading classes, and regularly attending or completing any of these forms of education, and participants were also eligible to win a raffle prize: if they were randomly selected for STI screening and if they tested negative for Trichomonas vaginalis and syphilis, then they would be entered into a cash raffle prize draw. | |
| Education Incentive Control Arm (50% of the enumeration areas) | Raffle Only Sub-arm (aimed for 25% of the total sample) | Participants were eligible to win a raffle prize: if they were randomly selected for STI screening and if they tested negative for Trichomonas vaginalis and syphilis, then they would be entered into a cash raffle prize draw. |
| No Intervention Sub-arm (aimed for 25% of the total sample) | Participants were not eligible to either participate in the raffle or receive financial incentives |
STI, sexually transmitted infection.