Search our database of 1,200+ summaries of randomized evaluations conducted by our affiliates in 98 countries. To browse key policy recommendations from a subset of these evaluations, visit the Policy Publications tab above.

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Impact of Home Computers on the Academic Achievement of Low-Income Children in the United States

Jonathan Robinson
Researchers analyzed the impact of a program that provided students in California with a home computer on students’ academic achievement. The program had no effect (either positive or negative) on any educational outcome, including grades, standardized test scores, and attendance.

Dependence Duration and Labor Market Conditions: Evidence from the United States

Researchers conducted a randomized evaluation to assess the role of employer behavior in generating "negative duration dependence"—the adverse effect of longer unemployment spells—by sending fictitious resumes to real job postings in 100 U.S. cities. Callback rates declined sharply over the first...

Structured Study Time, Self-Efficacy, and Tutoring

In this study, researchers evaluated scalable methods to improve student retention and performance in an online course, with the goal of improving meaningful access to this resource.

Providing High-Quality Online Lesson Plans to Improve Student Learning in the United States

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.

Costs of Failure to Appear for Arraignment

Natalia Emanuel
Helen Ho
Researchers will conduct a randomized evaluation to test the impact of different types of notifications on rates of failure to appear in traffic and criminal misdemeanor courts.

Text Message Reminders Decreased Failure to Appear in Court in New York City

Brice Cooke
Binta Zahra Diop
Alissa Fishbane
Jonathan Hayes
Anuj Shah
Researchers partnered with policymakers in New York City to evaluate the impacts of a redesigned court summons form and text message reminders on failure to appear (FTA) in court. A randomized evaluation found that text message reminders were able to reduce FTA by up to 26 percent, translating to 3...

Evaluating Post-Secondary Aid: Enrollment, Persistence, and Projected Completion Effects

Joshua Angrist
Sally Hudson
Researchers partnered with the Susan Thompson Buffett Foundation to randomly offer scholarships to Nebraska high school graduates who applied for financial assistance. Initial results from the ongoing study indicate that scholarship offers increased college enrollment and persistence while shifting...

Reintegrating Incarcerated Felons into the Political System in the United States

Daniel Biggers
David Hendrey
Gregory A. Huber
Marc Meredith
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.