Author/Creator
- National Center for Education Statistics66
- ebrary, Inc63
- Reese, Clyde M.53
- United States48
- United States. Congress. House. Committee on Science44
- United States. Office of Educational Research and Improvement41
- Eisenhower National Clearinghouse for Mathematics and Science Education28
- National Assessment of Educational Progress (Project)28
- National Research Council (U.S.). Mathematical Sciences Education Board25
- Educational Testing Service21
- United States. Congress. House. Committee on Science and Technology (2007). Subcommittee on Research and Science Education16
- National Science Foundation (U.S.)15
- United States. National Assessment Governing Board15
- Mathematical Association of America14
- United States. Congress. House. Committee on Science. Subcommittee on Research12
- United States. Congress. House. Committee on Education and the Workforce11
- Mullis, Ina V. S.10
- United States. Congress. Senate. Committee on Labor and Human Resources10
- United States. Department of Education10
- College Entrance Examination Board9