This document describes PPfT school-wide value-added measure by showing how to gain access to your SAS Education Value-Added Assessment System (EVAAS) account, stepping through the school growth measures, and discussing how growth is scored in PPfT appraisal.

For decades, school districts across the Nation have been pressured to close the achievement gap among students and have been held accountable for student outcomes. According to past researchers, there is a need to revise completely the teacher evaluation practices used in the 1980s and 1990s to better measure teacher effectiveness. More recently,…

This study was designed to assess the impact of providing teachers and principals with performance feedback on instructional practice, principal leadership, and student achievement. The teacher and principal performance feedback that was the focus of the study's intervention incorporated promising features of educator performance measures…

In "Houston Federation of Teachers (Plaintiff) v. Houston Independent School District (Defendant)," plaintiffs contested how teachers were being evaluated using a value-added model (VAM) as part of the districts' teacher accountability system. The VAM at issue was the Education Value-Added Assessment System (EVAAS), with potential…

New York State has used the Growth Model for Educator Evaluation ratings since the 2011-2012 school year. Since that time, student growth percentiles have been used as the basis for teacher and principal ratings. While a great deal has been written about the use of student test scores to measures educator effectiveness, less attention has been…

Three years after the launch of Chicago's redesigned teacher evaluation system, Recognizing Educators Advancing Chicago Students (REACH) Students, most teachers and administrators continue to report they believe REACH has the potential to improve instruction and student learning, and they remain negative about the use of student growth in…

Background/Context: With a growing body of evidence to support the assertion that teacher quality is vital to producing better student outcomes, policymakers continue to seek solutions to attract and retain the best educators. Performance-based pay is a reform that has become popular in K-12 education over the last decade. This strategy…

Mean or median student growth percentiles (MGPs) are a popular measure of educator performance, but they lack rigorous evaluation. This study investigates the error in MGP due to test score measurement error (ME). Using analytic derivations, we find that errors in the commonly used MGP are correlated with average prior latent achievement: Teachers…

The Every Student Succeeds Act prohibits the federal government from requiring the use of student achievement data for teacher accountability purposes. As states grapple with what to do about teacher accountability, it is critical to examine policy influences on a) the equitable distribution of effective teachers; and b) how teacher accountability…

States are redesigning their educator effectiveness systems to provide more information and more support to improve teaching. In the process, they increasingly look beyond the most basic and historically most common view of measuring student performance: how many students "passed" the State test in a given year. A number of States now…

Researchers at NIET and elsewhere have studied the effectiveness of "TAP: The System for Teacher and Student Advancement" (TAP) in raising student achievement, improving the quality of instruction, and increasing the ability of high-need schools to recruit, retain and support effective teachers. This document provides summaries of some…

The TAP System stands out because of its more than two-decade-long track record of growth and success in improving educator effectiveness and raising student achievement in high-need schools. This summary includes a recap of some of the most important results that have emerged from the research to date and highlights newer studies documenting…

With two decades of implementation in urban, suburban, rural, remote, tribal, public, private, and charter schools, the TAP System is impacting educators and students across the country. This document summarizes results from prior selected studies of TAP's impact and spotlights several new studies showcasing improved student achievement in…

NIET [National Institute for Excellence in Teaching] continually evaluates the impact of TAP: The System for Teacher and Student Advancement on raising student achievement, improving instruction and increasing the ability of high-need schools to recruit, retain and support effective teachers. In addition to national results in student achievement…

This paper investigates the validity of a national, standards-based teacher evaluation programme by examining the relationship between teachers' evaluation results and their students' learning progress. We used census achievement data that assessed the same cohort of students at the end of 8th and 10th grade. We applied multilevel modelling and…