The increased use of value-added measures is a result of policymakers viewing traditional measures of teacher effectiveness as obsolete and unrelated to student achievement. Additionally, literature lacks substantial findings examining the relationship between principal observation ratings and a teacher's value-added scores based on the…

In recent decades, much attention has been focused on student achievement in the United States. Many policy initiatives have been attempted in an effort to bolster achievement, including increasing school revenue, decreasing class size, expanding early childhood programs, and introducing vouchers and charter schools, to name a few, but not all of…