The Problem with Standardized Achievement Tests
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For several important reasons, standardized achievement tests should not be used to judge the quality of education. The overarching reason that students' scores on these tests do not provide an accurate index of educational effectiveness is that any inference about educational quality made on the basis of students' standardized achievement test performances is apt to be invalid. Employing standardized achievement tests to ascertain educational quality is like measuring temperature with a tablespoon. Tablespoons have a different measurement mission than indicating how hot or cold something is. Standardized achievement tests have a different measurement mission than indicating how good or bad a school is. Standardized achievement tests should be used to make the comparative interpretations that they were intended to provide. They should not be used to judge educational quality. Let's look at three significant reasons that it is thoroughly invalid to base inferences about the caliber of education on standardized achievement test scores.
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