Search our database of 1,200+ summaries of randomized evaluations conducted by our affiliates in 96 countries. To browse key policy recommendations from a subset of these evaluations, visit the Policy Publications tab above.

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Priming Adverse Events and Reports of Depression in Nigeria

Kevin McGee
Gbemisola Oseni
Julie Perng
Ryoko Sato
Tomomi Tanaka
Renos Vakis
To better understand how to measure and report depression, researchers randomized the order of questions in a national survey to examine the effect of triggering memories of difficult events, such as conflicts, shocks, and death, on reported levels of depression across households in Nigeria. They...

The Impact of Group-based Therapy and Cash Transfers on Adolescent Girls' Mental Health and Economic Outcomes in Uganda

Researchers are conducting a randomized evaluation to test the impacts of group-based therapy with and without a one-time lump sum cash transfers on the mental health and employment outcomes of adolescent girls in Uganda.

Increasing Menstrual Hygiene Awareness to Reduce School Dropout among Adolescent Girls in Madagascar

Julieta Vera
Duncan Webb
Researchers are conducting a randomized evaluation to test the impact of raising awareness about menstrual hygiene on adolescent girls' school retention in Madagascar.

Creating Incentives to Decrease Water Waste in Zambia

Researchers partnered with a water company in Zambia to evaluate whether improved information and incentives can help households manage their water usage. They found that targeting incentives to higher household water consumers might be an effective way to reduce water consumption.

The Impact of Contraceptive Subsidies for Individuals in the United States

In this randomized evaluation, researchers partnered with Planned Parenthood of Michigan to give vouchers for contraception to evaluate the impact of contraceptive costs on method choice. Those who received the vouchers were more likely to buy contraceptives and buy more expensive methods than those...

Creating a Toilet Habit in Kenya

Berhe Beyene
Johann Caro Burnett
Judy Chevalier

Household Water Connections in Tangier, Morocco

Researchers conducted a randomized evaluation to look at the effect of private connections in a setting where most households already had access to high-quality water through public taps. They found that households had a high willingness to pay for piped water, and while home water connection had no...

Belief Systems and Poverty Alleviation in the Philippines

In the Philippines, researchers conducted a randomized evaluation to measure the impact of an evangelical Protestant religious values and theology education program on individuals' economic and subjective wellbeing.