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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Information and Gender Differences in University Economics Courses and Majors in the United States

Daniel Halim
Elizabeth T. Powers
Researchers conducted a randomized evaluation to test the impact of providing information to students on their decision to pursue courses and majors in economics at a public university in the United States. The intervention increased male students' likelihood of studying additional economics courses...

Incentivizing Physical Activity to Improve Mental Health During Covid-19 Disruptions in the United States

Osea Giuntella
Kelly Hyde
Silvia Saccardo
Researchers conducted a randomized intervention to measure the impact of financial incentives for reaching daily step goals on physical activity and depression risk during the Covid-19 pandemic, to better understand the association between physical activity and mental health. While program...

The Effects of STEM Summer Programs on College Major, Persistence, and Graduation for Underrepresented High School Students in the United States

Researchers evaluated three STEM-focused summer programs for high school students and found that the programs increased students’ likelihood of attending a highly-ranked university, graduating, and earning a degree in STEM.

Leveling the Playing Field for High School Choice: A Field Experiment of Informational Interventions in the United States

Researchers evaluated the impact of several informational interventions with different modes of delivery and customization levels on high school choice outcomes among middle school students in New York City. All interventions made students less likely to rank a low graduation rate high school as...

Closing the Word Gap with Big Word Club: Evaluating the Impact of a Tech-Based Early Childhood Vocabulary Program

Researchers evaluated the Big Word Club, a classroom-based digital learning program designed to increase the vocabulary of young children, to assess the program’s impact on children’s receptive vocabulary. Researchers found that the Big Word Club increased students’ knowledge and retention of words...

The Impact of Free Tuition Program Design on College Applications and Enrollment in the United States

Elizabeth Burland
Katherine Michelmore
Shwetha Raghuraman
Researchers investigated how two different free tuition programs for low-income students affected application and enrollment to the University of Michigan. An unconditional offer substantially increased application and enrollment while a conditional offer had a much smaller effect on applications...