Document Type



Education | Educational Assessment, Evaluation, and Research


The essay considers two analogies that help to reveal the limitations of value-added modeling: the first, a comparison with batting averages, shows that the model’s reliability is quite limited even though year-to-year correlation figures may seem impressive; the second, a comparison between medical malpractice and so-called educational malpractice, suggests that strict accountability measures within education are out of line with legal precedent.



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