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Interpreting Effectiveness. Making Use of EVAAS Data. What is EVAAS. Education Value Added Assessment System Dr. William Sanders. Where do they get these numbers?. 8 th Grade Reading test score gives English I EOC predicted score AC=CS-(.92 * ATPA) AC= Academic Change CS=Current Score
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Interpreting Effectiveness Making Use of EVAAS Data
What is EVAAS • Education Value Added Assessment System • Dr. William Sanders
Where do they get these numbers? • 8th Grade Reading test score gives English I EOC predicted score • AC=CS-(.92 * ATPA) • AC= Academic Change • CS=Current Score • ATPA= Average of two previous assessment scores • Becomes .82 when only one pre-test score is available • English I is the 8th Grade EOG
What Do We Do with the Information? • Low performing scores=119-137 • Medium performing scores=138-156 • High performing scores=157-176
What do all these numbers mean? • Yay! We just found a new teacher for the lower level kids!
Factors to consider • Were there excessive absences in the year by the teacher or the students? • Were there any changes in the student’s life that could have influenced academic growth? • Is this the normal performance of the teacher or are there changes in the teacher’s situation that may have influenced the results? • Are there any new programs at the school being implemented that could have had an effect on the student?
Can we trust this information? • .8 Reliability Coefficient – Provided by Sanders • NCDPI suggests that the English I scores have a standard error of estimation of .586 • EOC Correlations between Predicted values and Residuals = -.006