William Sanders (statistician)

William L. Sanders (26 April 1942 – 16 March 2017) was an American statistician, a senior research fellow with the University of North Carolina at Chapel Hill. He developed the Tennessee Value-Added Assessment System (TVAAS), also known as the Educational Value-Added Assessment System (EVAAS), a method for measuring a teacher's effect on student performance by tracking the progress of students against themselves over the course of their school career with their assignment to various teachers' classes.

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