TY - BOOK AU - Williams, Rick L PB - Research Triangle Institute , Sampling Research and Design Center TI - NAEP year 11 design efficiency study : final report / by Rick L. Williams, David V. Budescu, James R. Chromy ; prepared for National Assessment of Educational Progress KW - Educational surveys -- United States. A2 - Budescu, David V A2 - Chromy, James R A2 - National Center for Education Statistics A2 - National Assessment of Educational Progress (Project) A2 - Sampling Research and Design Center (Research Triangle Institute) CY - Research Triangle Park, N.C N1 - Sponsored by the Education Commission of the States, National Assessment of Educational Progress and National Center for Education Statistics, National Institute of Education under contract no. OEC-O-74-0506 and grant no. NIE-G-80-0003. N1 - "June 1981." N1 - "RTI/1969/01-01 F." N1 - Stamped on cover: ED206709. N1 - Bibliography: leaf 41. PY - 1981 M1 - Accessed from https://nla.gov.au/nla.cat-vn727035 ER -