The Intertemporal Stability of Teacher Effect Estimates

  title={The Intertemporal Stability of Teacher Effect Estimates},
  author={Daniel F. McCaffrey and Tim R. Sass and J. R. Lockwood},
Recently, a number of school districts have begun using measures of teachers’ contributions to student test scores or teacher “value added” to determine salaries and other monetary rewards. In this paper we investigate the precision of valueadded measures by analyzing their inter-temporal stability. We find that these measures of teacher productivity are only moderately stable over time, with yearto-year correlations in the range of 0.2-0.3. However, dis-attenuated year-to-year correlations are… CONTINUE READING


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