The first volume of this report examines the existing measures of high school completion and the newly proposed proxy measures. This includes a description of the computational formulas, the data required for each indicator, the assumptions underlying each formula, the strengths and weaknesses of each indicator relative to a true cohort on-time graduation rate, and a consideration of the conditions under which each indicator does or does not work. The second volume of this report provides documentation of the technical work that the Department leadership used to select an interim graduation rate. The analysis in volume 2 draws upon the student record data from two states to compute the true cohort on-time graduation rate for each of those states, to compute the proxy graduation measures for each of these states, and to compare the performance of each proxy indicator to that of the true cohort rate. The Averaged Freshman Graduation Rate (AFGR) indicator is the only measure that is consistently among the best performing indicators in each analysis.
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