One econometric rule of thumb is that greater dispersion in observations of the independent variable improves estimates of regression coefficients and therefore produces better results, i.e., lower standard errors of the estimates. Nevertheless, students often seem to mistrust precisely the observations that contribute the most to this greater…

Learning to teach is a complex intellectual and adaptive performance act. Student engagement is the cornerstone of effective instruction. Current education reform policies, such as Common Core State Standards (National Governors Association Center for Best Practices & Council of Chief State School Officers, 2010) and Teacher Effectiveness…