Search our database of 1,200+ summaries of randomized evaluations conducted by our affiliates in 99 countries. To browse key policy recommendations from a subset of these evaluations, visit the Policy Publications tab above.

Displaying 33-40 of 255
Water point in Malawi

The Roles of Water Treatment Subsidies and Community Health Workers in Improving Child Health and Chlorine Usage in Malawi

Pascaline Dupas
Basimenye Nhlema
Zachary Wagner
Aaron Wolf
Emily Wroe
Researchers partnered with Partners in Health (PIH) to conduct a randomized evaluation to test the impact of monthly coupons and different CHW delivery methods on chlorine usage and child health outcomes in Southern Malawi. They find that the coupon program had stronger impacts on both outcomes and...
A person picks up a box of fresh vegetables.

Prescribing Food as Medicine among Individuals Experiencing Diabetes and Food Insecurity in the United States

Marcella Alsan
John Bulger
John Cawley
Joseph Doyle
Andrea Feinberg
Diabetes is one of the most prevalent diseases in the United States and is closely linked to food insecurity. Researchers evaluated the impact of an intensive food-as-medicine program that provides fresh food and diabetes education on health and health care utilization for individuals experiencing...
A mother bottle feeds her baby in Nigeria.

The Impact of Financial Incentives for Traditional Birth Attendants on Postnatal Care Use in Nigeria

Adanna Chukwuma
Jessica Cohen
Chinyere Mbachu
Margaret McConnell
Researchers evaluated whether giving traditional birth attendants (TBAs) cash incentives for maternal postnatal referrals can increase uptake of skilled maternal postnatal care. Cash rewards increased referrals made by TBAs by 182 percent and more than tripled the proportion of clients that attended...
A boy collects drinking water from a well in Rwanda.

The Impact of Community-Based Environmental Health Promotion Program on Child Health in Western Rwanda

Thomas Clasen
Erin Crossett
Karen Grepin
James Habyarimana
William Jack
Leodomir Mfura
Bernard Ngabo Rwabufigiri
Wolf-Peter Schmidt
Sheela Sinharoy
Ronald Wendt
In western Rwanda, researchers evaluated the impact of community health clubs on household take-up of healthy behaviors and on the health of children under 5 years of age. The program had minimal impact on household behaviors and no impact on caregiver-reported rates of diarrhea among children under...
A man washes his hands with soap.

Using Peer Pressure to Encourage Handwashing in Argentina

Researchers examined the impact of peer pressure on handwashing behavior by varying whether men using a restroom in Buenos Aires, Argentina were observed by another restroom user. They found that being observed increased urinal flushing by 26.7 percent and handwashing by 19 percent, suggesting that...
Two girls talk to each other while looking at something on a laptop.

Online Sexual Education Modules for Schools in Urban Colombia

Alberto Chong
Marco Gonzalez-Navarro
Dean Karlan
Martin Valdivia
In Colombia, researchers evaluated the impact of an online sexual health course implemented in public middle schools on adolescents’ sexual health knowledge, behavior, and attitudes towards sexual health. The study showed that the online course led to improved sexual health knowledge and attitudes...
Doctor with blue uniform hands malaria treatment medication to patient in Uganda

The Impact of Packaging and Messaging on Adherence to Malaria Treatment in Uganda

Jessica Cohen
Indrani Saran
Researchers evaluated the effects of different medication packaging and messaging on individuals’ adherence to malaria treatment in Uganda. They found that colorful, “high quality” packaging had no effect, while adding low-cost stickers with simple informative messaging to existing packaging...
A group of female passengers look at public health campaigns on phones while sitting on a train in Indonesia.

Celebrity Twitter Endorsement for an Immunization Public Health Campaign in Indonesia

Vivi Alatas
Arun Chandrasekhar
Markus Mobius
Ben Olken
Cindy Paladines
Researchers conducted a randomized evaluation on measuring the impact of celebrity Twitter endorsement for a child immunization campaign on the public’s opinion and behavior towards immunization. Celebrity endorsement increased Twitter engagement with the immunization campaign, primarily when...