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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 measured the impact of receiving phone calls on registered voters’ likelihood of voting in general elections in the United States. The study found that non-partisan, get-out-the-vote (GOTV) phone calls had no effect on voter turnout.

Researchers evaluated the impact of auto-scheduling appointments with targeted messages and nudge reminders on primary care engagement within four months after delivery for postpartum individuals with diabetes, hypertension, mental illness, or obesity in the United States. Individuals who received...

Researchers organized Election Day festivals to evaluate how a more festive and social voting atmosphere might impact voter turnout. Voting rates were significantly higher in precincts where festivals occurred than in comparison precincts.

Researchers conducted a randomized evaluation to measure the impact of offering subsidies to connect to the power grid on the demand for rural electrification in Kenya. The study finds that demand falls rapidly as connection price increases, and that supply costs are very high.

In India, where particulate matter pollution is a pressing issue, researchers are investigating whether increased transparency about industrial firms’ pollution emissions can improve the enforcement of environmental laws and reduce pollution.

Researchers examined results of a school admissions lottery to measure the impact of charter school education on students after six years. They found that offering a charter education resulted in improved test scores, higher college enrollment, a reduction in specific risky behaviors, and no...