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Direct linkKim, Myung-Hoon; Kim, Michelle S. – Journal of Chemical Education, 2016
A visual regression analysis using the least absolutes method (LAB) was developed, utilizing an interactive approach of visually minimizing the sum of the absolute deviations (SAB) using a bar graph in Excel; the results agree very well with those obtained from nonvisual LAB using a numerical Solver in Excel. These LAB results were compared with…
Descriptors: Least Squares Statistics, Regression (Statistics), Graphs, Courseware
Download full textAgodini, Roberto; Harris, Barbara; Atkins-Burnett, Sally; Heaviside, Sheila; Novak, Timothy; Murphy, Robert – National Center for Education Evaluation and Regional Assistance, 2009
The purpose of this large-scale, national study is to determine whether some early elementary school math curricula are more effective than others at improving student math achievement, thereby providing educators with information that may be useful for making adequate yearly progress (AYP). This report presents results from the first cohort of…
Descriptors: Investigations, Disadvantaged Schools, Educational Improvement, Mathematics Achievement
Roberto Agodini; Barbara Harris; Sally Atkins-Burnett; Sheila Heaviside; Timothy Novak; Robert Murphy – National Center for Education Evaluation and Regional Assistance, 2009
The purpose of this large-scale, national study is to determine whether some early elementary school math curricula are more effective than others at improving student math achievement, thereby providing educators with information that may be useful for making adequate yearly progress (AYP). This report presents results from the first cohort of…
Descriptors: Investigations, Disadvantaged Schools, Educational Improvement, Mathematics Achievement
