Value-Added Assessment determines the effectiveness of school systems, schools, and teachers based on student academic growth over time. This study clarifies a strategy for school improvement by utilizing the results of measuring academic achievement, especially focusing on the use of Value-Added Assessment for the school improvement initiative in Chattanooga, Tennessee.
The initiative was prompted by the announcement that nine of Tennessee's 20 lowest-performing elementary schools were located in Chattanooga. All nine of these schools were urban, poor, and largely minority. Teacher turnover rates were high: the faculty of each school was made up of young, inexperienced, and, in some cases, unqualified teachers. The partners of the initiative decided to focus their efforts on student literacy, with a primary strategy of building knowledge and skills among educators. They tackled district-level structures and policies that impeded reform and crafted a reform framework that continues to provide effective professional development for teachers and principals. Their efforts have paid off: 1) students in the schools were making significant gains in achievement, 2) the performance of teachers in the schools has improved, and 3) teacher turnover rates have dropped.
One core component of the success has been data on Value-Added Assessment. In analyzing the process of utilizing this for school improvement in Chattanooga, the results show that Value-Added Assessment can become a driving force for collaborative professional development when it serves as a data source for formative evaluation, not summative evaluation.
This article concludes that, in analysis of the initiative in Chattanooga, Value-Added Assessment has three functions: 1) recognizing teachers' contributions to student academic growth, 2) facilitating collaboration among teachers, and 3) focusing on discussion for better instruction. It has a greater potential to make the three functions work together rather than individually. This is because it could work as a driving force for school improvement. Implications of the findings for prerequisites and factors as potential of Value-Added Assessment are discussed.
However, this paper also points out the challenges of the initiative, or Value-Added Assessment. First, the potential of Value-Added Assessment can be made possible after ridding the schools of teachers who lack sufficient morale and teaching skills. Second, it may cause the problem that some teachers could be labeled as “ineffective” teachers as a result of Value-Added Assessment, and cooperation could also be undermined by doing so. It is also necessary to examine the limitations and challenges of achievement-based educational reforms.
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