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The problem
Intervention: Sex education delivered by either near-peer messengers (older adolescents) or government teachers
Who it was tested with: Adolescent students in Botswana schools.
Children or communities are compared with a group that did not receive the intervention, or followed over years. This is the design that best separates what the intervention did from everything else that changed.
"Educational messages delivered by near-peers led to a statistically significant 40% reduction in adolescent pregnancy incidence, whereas the same messages delivered by government teachers showed no detectable effect." The study used a cluster randomized trial design with comparison between messenger types, making it an experimental design that can assess causal effects.
The document does not provide information on sample sizes, study duration, sustainability of effects, or the specific mechanisms underlying the differential effectiveness between messengers.
Across countries and designs
1 study · 1 country
