| Notes |
Rappaport Institute for Greater Boston
Center for American Political Studies
The Institute for Quantitative Social
Science
Thomas B. Fordham Institute
Brookings Institution, Brown Center on
Education Policy
Hoover Institution at Stanford University
Alliance for School Choice
Center for Education Reform
Education Leaders Council
Heritage Foundation
Institute for Justice
Milton and Rose D. Friedman Foundation
Empowering Parents for Informed
Choices in Education (EPIC)
Children's Scholarship Fund
Heartland Institute School Reform News
Joint Center for Poverty Research
Black Alliance for Educational Options
Foundation for Excellence in Education |