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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
Gubbins, E. Jean; McCoach, D. Betsy; Foreman, Jennifer L.; Gilson, Cindy M.; Bruce-Davis, Micah N.; Rubenstein, Lisa DaVia; Savino, Jennifer; Rambo, Karen; Waterman, Craig – National Research Center on the Gifted and Talented, 2013
The present study seeks to determine how exposure to pre-differentiated and enriched curricula incorporating educative curriculum materials affects students' achievement as well as teacher and administrator responses to the intervention. A 2-year multi-site cluster randomized control trial study recruited a national sample of 4,530 grade 3…
Descriptors: Academically Gifted, Mathematics Education, Curriculum Enrichment, Individualized Instruction