For the last 3 years, more than 80% of the respondents to Annual Phi Delta Kappa/Gallup Poll of the Public’s Attitudes Toward The Public Schools have stated that they would rather see a school’s performance measure based upon “improvement shown by students” than the “percentage passing the test” (Rose & Gallip, 2007, p. 35). If this were to become the norm, the next question would be what “improvement” is significant? Educators need to understand “value-added” if they are going to use “improvement” to show that schools are improving student achievement.
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Costello, R., Elson, P., & Schacter, J. (2008). An Introduction to Value-Added Analysis. Journal of Catholic Education, 12 (2). http://dx.doi.org/10.15365/joce.1202062013