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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
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Llosa, Lorena; Lee, Okhee; Jiang, Feng; Haas, Alison; O'Connor, Corey; Van Booven, Christopher D.; Kieffer, Michael J. – American Educational Research Journal, 2016
The authors evaluated the effects of P-SELL, a science curricular and professional development intervention for fifth-grade students with a focus on English language learners (ELLs). Using a randomized controlled trial design with 33 treatment and 33 control schools across three school districts in one state, we found significant and meaningfully…
Descriptors: Intervention, Science Education, Science Course Improvement Projects, Program Effectiveness