Our experts work across the United States and around the globe, partnering with federal agencies, state and local governments, foundations, universities, professional associations, and businesses, to uncover evidence on health, human services, and international topics. In Evidence, explore current and past projects and our library of publications.

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Learn more about select client project work in health, human services, and international research.


Browse our complete online catalog of project reports, issue briefs, journal articles, fact sheets, working papers, and other publications.

Most Recent Evidence

Evaluation of the Liberia Compact’s Mt. Coffee Hydropower Plant Rehabilitation and Capacity Building and Sector Reform

Feb 15, 2024
Candace Miller, Paolo Abarcar, Kristine Bos, Poonam Ravindranath, Cullen Seaton, Ifedapo Agbeja, Newton Toe, Wilson Dorleleay, Jeremy Page, Matthew Spitzer, Hena Matthias, Aditya Acharya, Jennifer Blum, Naomi Dorsey, Dadi Fundira, and James Wholley

Early Care and Education Leadership Study (ExCELS) Data User’s Guide

Feb 14, 2024
Lizabeth Malone, Ellen Litkowski, Brett Eiffes, Davis Straske, Scilla Albanese, Yange Xue, Katie Gonzales, Reggie Gilliard, Elisabeth Appel, Gretchen Kirby

Measuring Leadership in Early Care and Education: The Early Care and Education Leadership Study (ExCELS) Measure

Feb 14, 2024
Gretchen Kirby, Lizabeth Malone, Yange Xue, Anne Douglass, Katie Gonzalez, Scilla Albanese, Tutrang Nguyen, Reggie Gilliard, Elisabeth Appel

Helping Teachers Implement Culturally Responsive Practices During Math Instruction

Feb 12, 2024
Barbara Harris, Walter Herring, and Riley Stone

Opioid Use Among Social Security Disability Insurance Applicants

Feb 07, 2024
April Yanyuan Wu, Denise Hoffman, and Paul O’Leary

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