Author
Educational Testing Service
5
National Center for Education Statistics
5
National Assessment of Educational Progress (Project)
4
O'Sullivan, Christine Y.
3
Institute of Education Sciences (U.S.)
2
Weiss, Andrew R.
2
Allen, Nancy L.
1
Askew, Janice M.
1
Jenkins, Lynn, 1947-
1
Keiser, Kellie K.
1
Mullis, Ina V. S.
1
United States. Office of Educational Research and Improvement
1