New York City Public Schools. Office of Educational Evaluation 249
New York (N.Y.). Board of Education. Office of Research, Evaluation, and Assessment 234
American Institutes for Research 204
National Center for Research in Vocational Education (U.S.) 197
Austin Independent School District (Tex.). Office of Research and Evaluation 175
Abt Associates 172
United States. General Accounting Office 140
Educational Testing Service 137
United States. Department of Education 131
Far West Laboratory for Educational Research and Development 122
Northwest Regional Educational Laboratory 120
University of California, Los Angeles. Center for the Study of Evaluation 117
Mathematica Policy Research, Inc 107
School District of Philadelphia, Pa. Office of Research and Evaluation 106
New York City Public Schools. Office of Educational Assessment 93
Rand Corporation 87
Society for Research on Educational Effectiveness 87
Research for Better Schools, inc 85
Ohio State University. Center for Vocational and Technical Education 78
School District of the City of Saginaw. Department of Evaluation, Testing, and Research 78
High/Scope Educational Research Foundation 74
Berney, Tomi D. 73
California. State Department of Education 73
Appalachia Educational Laboratory 71
United States. Department of Health and Human Services 70
RMC Research Corporation 69
Atlanta Public Schools 67
Manpower Demonstration Research Corporation 67
United States. Office of Education 67
MDRC (Organization) 66
Education Endowment Foundation 64
National Center for Education Evaluation and Regional Assistance (U.S.) 64
Urban Institute 63
National Council on Teacher Quality (U.S.) 61
New York (N.Y.). Office of Educational Research 59
Westat, Inc 58
Center on Education Policy (Washington, D.C.) 57
ERIC Clearinghouse on Urban Education 56
What Works Clearinghouse (Institute of Education Sciences) 54
Southern Regional Education Board 53
Colorado. Department of Education 52
Development Associates 51
Central Midwestern Regional Educational Laboratory 50
University of the State of New York 50
Texas Education Agency 49
Wisconsin. Department of Public Instruction 49
California Community Colleges. Office of the Chancellor 48
Washington (State). Superintendent of Public Instruction 48
What Works Clearinghouse (ED) 47
Kansas City Missouri School District 46
Minneapolis Public Schools. Department of Research and Evaluation 46
National Foundation for Educational Research in England and Wales 46
Policy Studies Associates 46
Dade County Public Schools. Office of Educational Accountability 44
Claus, Richard N. 43
Portland Public Schools (Or.). Research and Evaluation Department 43
Teaching and Learning Research Corp., New York, NY 42
ERIC Clearinghouse on Adult, Career, and Vocational Education 41
Public Schools of the District of Columbia 41
Des Moines Public Schools (Iowa) 40
Public Schools of the District of Columbia. Department of Research and Evaluation 40
Academy for Educational Development 39
Houston Independent School District (HISD), Department of Research and Accountability 39
Quimper, Barry E. 38
System Development Corporation 38
United States. Bureau of Indian Affairs 38
California Postsecondary Education Commission 37
Columbus Public School Systems (Ohio). Department of Evaluation Services 37
Oregon. Department of Education 37
United States. General Accounting Office. Health, Education, and Human Services Division 37
Public Schools of the District of Columbia. Division of Quality Assurance 36
Research Triangle Institute 36
Southwest Regional Laboratory for Educational Research and Development 36
Unesco 36
United States. Congress. House. Committee on Education and Labor 36
Wisconsin Univ. - Stout, Menomonie. Center for Vocational, Technical and Adult Education 36
Austin Independent School District (Tex.). Office of Program Evaluation 35
ERIC Clearinghouse on Higher Education 35
Hartford Public Schools (Hartford, Conn.) 35
National Institute of Education (U.S.) 35
SRI International 35
Great Britain. Further Education Unit 34
National Centre for Vocational Education Research (Australia) 34
William Rainey Harper Coll., Palatine, IL. Office of Planning and Research 34
ERIC Clearinghouse on Assessment and Evaluation 33
Frank Porter Graham Child Development Center 33
Scottish Council for Research in Education 33
University of California, Los Angeles. Center for Research on Evaluation, Standards, and Student Testing 33
Applied Management Sciences, Inc 32
Harvard Family Research Project 32
Human Resources Research Organization 32
Indiana University. School of Education 32
New York University. Center for Field Research and School Services 32
Pennsylvania. Department of Education 31
Austin Independent School District (AISD) 30
Illinois Community College Board 30
Ohio State University. Center for Vocational Education 30
Southwest Educational Development Laboratory 30
University of Illinois at Urbana-Champaign 30
University of Texas at Austin. Research and Development Center for Teacher Education 30