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This study tests whether offering small prizes (phone credit) can encourage young people aged 15-30 with HIV to take their medication every day. 560 participants in Uganda are split into groups with different reward rules. The goal is to see if these low-cost incentives improve a…

This study follows up on a large program in Nigeria where women received cash payments for attending prenatal and postnatal care and delivering in a health facility. Researchers want to know if the positive effects on mother and child health lasted over time and if they spread to…

This study aimed to see if simple electronic reminders could help doctors reduce risky medication combinations in older patients. It planned to enroll primary care clinicians and use behavioral nudges in the electronic health record. However, the trial was withdrawn before any pa…

This study aimed to see if asking patients four simple questions about their thinking and memory during a yearly checkup would lead doctors to order more tests or referrals for cognitive decline. The plan was to compare doctor behavior before and after adding the screener. Howeve…