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Download full textCheung, Alan; Slavin, Robert E.; Lake, Cynthia; Kim, Elizabeth – Society for Research on Educational Effectiveness, 2016
Despite widespread recognition among policy makers, educational leaders, and the nation as a whole of the importance of science, engineering, and technology as drivers of the future of the country and society, the science achievement of America's students is mediocre at best, in comparison to that of international peers. On the 2012 PISA tests in…
Descriptors: Secondary School Science, Science Programs, Middle School Students, High School Students
Direct linkCheung, Alan C. K.; Slavin, Robert E. – Educational Researcher, 2016
As evidence becomes increasingly important in educational policy, it is essential to understand how research design might contribute to reported effect sizes in experiments evaluating educational programs. A total of 645 studies from 12 recent reviews of evaluations of preschool, reading, mathematics, and science programs were studied. Effect…
Descriptors: Effect Size, Research Methodology, Research Design, Preschool Evaluation
