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Download full textShi, Hui; Cheung, Elizabeth S. T.; Cheung, Alan C. K. – Science Insights Education Frontiers, 2020
Stratified teaching is an effective method and means to implement teaching students per their aptitude. Domestic and foreign scholars have carried out many experimental and quasiexperimental studies to observe the impact of stratified teaching on students' academic performance, but the results are quite different. So, can stratified teaching…
Descriptors: Teaching Methods, Academic Achievement, Middle School Students, Meta Analysis
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
