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National Center for Education Statistics, 2012
This report presents results of the National Assessment of Educational Progress (NAEP) U.S. science assessment in 2011. A representative sample of 122,000 eighth-graders participated in the 2011 NAEP science assessment, which is designed to measure students' knowledge and abilities in the areas of physical science, life science, and Earth and…
Descriptors: National Competency Tests, Science Tests, Grade 8, Scores

Robinson, James T.; Tolman, Richard R. – 1981
This codebook for a machine-readable data file contains frequencies for the values of 310 variables for 446 student cases that comprised the field test data from the testing of Knowing, a Level III module of the BSCS Human Sciences Program. This module was developed and field tested with eighth-grade students in middle schools and junior high…
Descriptors: Curriculum Evaluation, Curriculum Research, Educational Research, Elementary Secondary Education