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The Treatment Of Missing Data When Estimating Student Growth With Pre-Post Educational Accountability Data, Jason P. Kopp

Dissertations, 2014-2019

To ensure program quality and meet accountability mandates, it is becoming increasingly important for educational institutions to show “value-added” for attending students. Value-added is often evidenced by some form of pre-post assessment, where a change in scores on a construct of interest is considered indicative of student growth. Although missing data is a common problem for these pre-post designs, missingness is rarely addressed and cases with missing data are often listwise deleted. The current study examined the mechanism underlying, and bias resulting from, missingness due to posttest nonattendance in a higher-education accountability testing context. Although data were missing for some …