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Arnold Ventures’ Evidence and Evaluation team funds rigorous research, including randomized controlled trials (RCTs) and quasi-experimental designs (QEDs) evaluating policies and programs across the spectrum of U.S. social policy. This page provides links to brief, plain-language summaries of research projects that have reported interim or final results. Each summary includes a description of the program evaluated, the study design, the effects found on the primary outcomes, an overview of study quality, and a link to the research team’s full study report. Consistent with our overall approach to evidence reporting, we seek to summarize findings in a balanced, objective manner and note any study limitations that may reduce the reliability of the findings. We update this page as new findings are reported. Find summaries of all research funded by the Evidence and Evaluation team on our Summaries of RCT Grants page.

Jump to a section using the menu below:

Civic Involvement

BallotReady’s Make a Plan to Vote Online Tool to Increase Voter Turnout

Finding of no statistically significant impact on voter turnout in the 2018 U.S. mid-term elections. Read more

    Criminal Justice & Violence Prevention

    Fostering Healthy Futures for Teens (FHT‑F) –A Mentoring Program for Youth with Child Welfare Involvement

    Suggestive, but not statistically significant, reductions in crime and delinquency in a randomized controlled trial. Read more

    Big Brothers Big Sisters of America’s Community-Based Mentoring Program

    Interim findings of reductions in arrests and substance use in a large, multi-site randomized controlled trial. No statistically significant effects were found on two measures of delinquency. Read more

    Motivational Interviewing plus Critical Time Intervention for Hospitalized Gunshot Wound Victims 

    Findings of no statistically significant effect on criminal arrests in a randomized controlled trial. Read more

    Rapid Employment and Development Initiative (READI)

    Findings of no statistically significant impact on overall serious violent crime in a randomized controlled trial. Read more

    Early Childhood

    Nurse-Family Partnership Home Visitation Program

    No statistically significant long-term impact on maternal and child mortality in three randomized controlled trials. Read More

    Employment & Training

    Year Up’s Professional Training Corps (PTC) – a College-Based Version of Year Up’s Proven-Effective Workforce Training Program for Economically-Disadvantaged Young Adults

    Findings of no statistically significant effects on workforce earnings or months of college enrollment in the second and third years after study entry. Read More

    English for Advancement (EfA) Workforce Development Program for English Language Learners

    Positive impacts on earnings and employment in a large randomized controlled trial. Read more

    Nevada Reemployment and Eligibility Assessment (REA) Program for Unemployment Insurance Claimants

    Positive impacts on earnings and reduced use of unemployment insurance in a large randomized controlled trial. Read more

    Project QUEST Occupational Training for Low-income Adults

    Positive, sustained (9- and 11-year) earnings impacts in a randomized controlled trial. Read More

    K‑12 Education

    A Social Belonging Mindset Intervention for Students Entering Middle School 

    Modest end-of-year impact on students’ grade point average. Read more

    Career and Technical Education (CTE) in New York City High Schools

    Findings of a small adverse impact on high school graduation and no statistically significant impact on college persistence for 138 CTE programs that served students from 2007 through 2013. Read More

    Core Knowledge Charter Schools

    No statistically significant impact on English language arts achievement in 6th
    grade (longest-term follow-up) but suggestive positive impacts in 4th
    and 5th grade. Read More

    New Mexico Charter Schools

    Suggestive, but not statistically significant, increase in the rate of college enrollment for high school charter schools, and inconclusive evidence for elementary and middle school charter schools, in three randomized controlled trials. Read more

    The Vision for Baltimore (V4B) Project, Providing Eyeglasses to Students

    Findings of no statistically significant effects on state test scores in English language arts and math achievement. Read More

    KIPP Charter Middle Schools

    Long-term, suggestive, impacts on college enrollment and persistence in a large randomized controlled trial. Read More

    Minnesota Math Corps – Tutoring in Grades 4 – 8

    Findings of no statistically significant effects on student math achievement. Read More

    Literacy First Tutoring for At-risk Readers in Second Grade

    Short-term positive impact on reading achievement, but no discernible impact on the primary (longer-term) outcomes of fifth grade reading or science achievement. Read More

    Working on Womanhood (WOW), a Cognitive-Behavioral Therapy Program for Disadvantaged High School Girls, to Improve Mental Health 

    Suggestive evidence (not statistically significant) of modest reductions in rates of clinical depression and PTSD. No discernible effect on rate of clinical anxiety. Read More

    SAGA High-Dosage Literacy Tutoring for First Graders

    Suggestive, but not statistically significant, evidence of modest gains in reaching achievement in a randomized controlled trial. Read More

    Post-Secondary Education

    Bottom Line College Access and Success Program for Low-Income Students

    Positive impacts on bachelor’s degree receipt in a large, multi-site randomized controlled trial. Read More

    Accelerate, Complete, Engage (ACE) at CUNY John Jay College of Criminal Justice 

    Positive impact on on-time” (four-year) bachelor’s degree completion in a randomized controlled trial Read More

    Accelerated Study in Associate Programs (ASAP) – Ohio replication

    Long-term positive impacts on degree completion and workforce earnings of low-income community college students in a large randomized controlled trial. Read More

    Communications Nudges” to Encourage College Financial Aid Applications

    Findings of no statistically significant effects on college attendance of low-income and first-generation students in a large randomized controlled trial. Read More

    Creating Birds of a Feather Intervention to Build Relationships Between College Instructors and Their Students

    Findings of no statistically significant effects on exam scores and college persistence in a randomized controlled trial. Read More

    Monitoring Advising Analytics to Promote Success (MAAPS) Student Advising Program

    Six-year findings of no statistically significant impacts on college persistence and degree completion by first generation or low-income college students in a large randomized controlled trial. Read More

    Stay the Course Case Management Program 

    Findings of no statistically significant effects on college enrollment and degree completion by low-income community college students in a randomized controlled trial. Read More

    Up-front Performance Incentives for Instructors and Students in Community Colleges

    Positive impact on exam scores, but no statistically significant impact on rates of graduation with an associate degree. Read More

    Regulatory Policy

    Automated Enforcement of Outdoor Watering Restrictions in Fresno, California

    Significant reduction in water usage found in a citywide randomized controlled trial. Read More

    Federal Workplace Health and Safety Inspections 

    A randomized controlled trial of workplace health and safety inspections administered by federal Occupational Health and Safety Administration (OSHA) found highly suggestive reductions in workplace injuries. Read More


    Substance Abuse Prevention / Treatment

    Big Brothers Big Sisters of America’s Community-Based Mentoring Program

    Interim findings of reductions in arrests and substance use in a large, multi-site randomized controlled trial. No statistically significant effects were found on two measures of delinquency. Read more

    PROSPER Youth Substance Abuse Prevention System

    A long-term randomized controlled trial found a reduction in costs for Medicaid-covered emergency department visits, but no statistically-significant difference of the number of such visits. Read more

    First Graders Substance Abuse and Mental Health

    Healthy Minds, An Online Growth Mindset Intervention for High School Students Designed to Reduce Depression 

    Findings of no statistically significant effect on rates or symptoms of depression in a randomized controlled trial. Read More

    Unplanned Pregnancy Prevention

    The Teen Options to Prevent Pregnancy (TOPP) Program: Long-Term Effects on Participants’ Enrollment and Persistence in College

    Findings of no statistically significant effects on college enrollment or persistence. Read more