| http://www.w3.org/ns/prov#value | - Most notably???many teachers whose value-added for one test is low are in fact quite effective when judged by the other.??? What???s more, the researchers warned, ???there is every reason to think that the problems with value-added measures ??? would be worse in a high-stakes environment,??? calling the results of the study ???sobering about the value of student achievement data as a significant c
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