American education's use of "value added measures" is statistically bankrupt

But that’s not what these silly tests are used for. They are trying to compare student performance each year, and tie it to the effectiveness of the teacher. As the article states, that is inherently flawed. There are far too many variables involved, to state the that only thing that matters in test scores is the effectiveness of the teacher. Anyone who believes in these test just does not understand kids and how they learn. Too many know it alls who haven’t been in a classroom since they were students.

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