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In India, researchers measured the impact of providing vouchers to attend private schools on student learning. Students who won vouchers had test scores that were 0.13 standard deviations higher across all subjects.

In Afghanistan, researchers evaluated the impact of a Targeting the Ultra Poor program on poverty reduction. The cost-effective program generated large positive impacts for women participants across key outcomes: consumption, assets, psychological well-being, total time spent working, financial...

Researchers evaluated the impact of different approaches designed to increase latrine coverage on actual latrine coverage, investment in hygienic latrines, and the prevalence of open defecation.

Researchers introduced text message reminders to evaluate their effect on Kenyan patients taking their antiretrovirals consistently and not skipping doses. Patients who received weekly text messages were more likely to take their medicine 90 percent of the time and were less likely to skip doses for...