Interesting New ‘Correlation Report’ Shows Educators How Well Any Two Assessment Scores Correlate to Each Other

To help educators view the relationship between two assessments, dataMetrics, a Massachusetts-based company specializing in test processing and reporting software for K-12 educational institutions, has created the Correlation Report. The new TestWiz report allows educators to select any two assessments, that were given to the same students and calculate the correlation between the two – in the form of a Pearson Product Moment Correlation Coefficient (-1 to +1). The report also provides a visual representation of the correlation through a scatter plot of the test scores.


The report is useful when evaluating and acting on results of an assessment. It can give educators insight as to whether results on a locally developed test can be used to predict performance on a high-stakes test. The report can also provide statistical backing for questions that have preconceived answers, i.e. is there a strong correlation between performance on the state’s Math open items and Reading Comprehension?



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Tags: assessment, corestandards, datametrics, education, eett, iste10, iste2010, rti, specialed, sped, More…testing, testwiz

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