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Researchers examined the effects of personal canvassing, phone calls, and direct mail on voter turnout shortly before the 1998 general election in the US city of New Haven. Personal canvassing had a far greater influence on voter participation than three pieces of professionally crafted mail...

Researchers evaluated the impact of mailings that informed people with a record of felony conviction of their eligibility to vote on political participation. The mailing increased political participation, particularly among individuals that were active voters prior to incarceration.

Researchers conducted a randomized evaluation to test how encouraging traditional leaders to broaden their circle of advisors affects inclusive governance in Zimbabwe. Village chiefs improved their decision-making processes when they attended the workshop on inclusive and transparent governance and...

In the United States, researchers evaluated the impact of a cognitive behavioral therapy (CBT) program designed to teach high-risk male students in secondary schools to regulate harmful, automatic behaviors. Results demonstrated that the program led to a significant drop in arrests per student...

In Northern Nigeria, researchers are testing the effect of providing mothers with unconditional cash transfers, coupled with varying levels of information and guidance on nutrition, to encourage parents to use funds for their children’s nutrition and food security.

Researchers conducted a randomized evaluation to test the impact of regular informational text messages to parents on children’s academic performance. The intervention improved math grades and attendance, although it did not impact negative classroom behavior on average. These effects were generally...