Graphing, Calculating, and Interpreting Rate of Improvement
          Graphing, Calculating, and Interpreting Rate of Improvement. Caitlin S. Flinn, Ed.S., N.C.S.P. Andrew E. McCrea, M.S., N.C.S.P. NASP Convention March 3, 2010. Objectives. There needs to be a standardized procedure for calculating RoI We’re proposing a method using Simple Linear Regression.
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