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Researchers evaluated the impact of providing teachers with access to high-quality online lessons and implementation support on student achievement in mathematics. Providing teachers with access to the lessons, reminders, and implementation support significantly increased student achievement.

Researchers used two randomized evaluations to identify whether the motive for giving in public can be primarily linked to a desire for prestige (the “image” effect) or a hope that a public gift will influence others (the “signal” effect). They found that a desire to improve social image largely...

Researchers conducted two randomized evaluations to test the impact of coaching teachers on integrating CAL in their elementary and middle school mathematics instruction in two large, diverse school districts in the United States. The intervention led to improved math performance in one evaluation...

Researchers randomly evaluated whether well-timed access to credit would allow maize farmers in Kenya to make better use of storage and sell their output at higher prices. The loan offers allowed farmers to store more maize and earn higher revenues, with larger revenue impacts for farmers granted...

Researchers conducted a randomized evaluation to test the impact of introducing a pay-as-you-go car insurance contract, which reduces minimum purchase requirements, to uninsured drivers in California. Applicants who were offered this type of insurance were nearly twice as likely to purchase car...

Researchers examined the effects of free savings account access on savings account use, indebtedness, consumption, and well-being. Easy access to savings accounts reduced participants’ reliance on borrowing, helped them manage fluctuations in income, and increased their self-reported well-being.

Researchers from Yale University conducted a randomized evaluation to examine the effects of political party identification on political attitudes and opinions. Participants in the study who received a printed letter indicating that they must register with a political party to vote in an upcoming...

Researchers used a randomized evaluation to measure the impact of introducing credit scores on lending to small enterprises in Colombia. The adoption of credit scores increased productivity in the loan approval process and improved credit allocation.