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Download full textDeke, John; Dragoset, Lisa; Moore, Ravaris – National Center for Education Evaluation and Regional Assistance, 2010
In randomized controlled trials (RCTs) where the outcome is a student-level, study-collected test score, a particularly valuable piece of information is a study-collected baseline score from the same or similar test (a pre-test). Pre-test scores can be used to increase the precision of impact estimates, conduct subgroup analysis, and reduce bias…
Descriptors: Achievement Gains, Scores, Pretests Posttests, Regression (Statistics)
Dynarski, Mark; Agodini, Roberto; Heaviside, Sheila: Novak, Timothy; Carey, Nancy; Campuzano, Larissa; Means, Barbara; Murphy, Robert; Penuel, William; Javitz, Hal; Emery, Deborah; Sussex, Willow – National Center for Education Evaluation and Regional Assistance, 2007
The National Center for Education Evaluation and Regional Assistance produced this major study of the effectiveness of education technology. Mandated by Congress, the report uses scientifically based research methods and control groups to focus on the impact of technology on student academic achievement. Thirty-three districts, 132 schools, and…
Descriptors: Program Effectiveness, Grouping (Instructional Purposes), Grade 1, Grade 4
