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Whether you agree or disagree about the effectiveness of standardized testing, it is hard to deny that the tests are important for several reasons. Most educators hold very strong opinions regarding the tests, and it is helpful to see why these tests are important before forming your own. Objectivity of Tests The first reason these standardized tests are important is because they are excellent objective indicators of student performance.
Nonparametric tests are sometimes called distribution free statistics because they do not require that the data fit a normal distribution.More generally, nonparametric tests require less restrictive assumptions about the data.Another important reason for using these tests is that they allow for the analysis of categorical as well as rank data.1  Why Not Used All the Time? 2  Since nonparametric tests require fewer assumptions and can be used with a broader range of data types, the question becomes, Why not use them all of the time?. 3  They are robust. 4  They have greater 5  ... Tnother important reason for using these tests is that they allow for the analysis of categorical as well as rank data. 1  Why Not Used All the Time? 2  Since nonparametric tests require fewer assumptions and can be used with a broader range of data types, the question becomes, Why not use them all of the time?. 3  They are robust. 4  They have greater 5  ... T