The Composite Performance Index (CPI) is a 100-point metric used to measure school and district performance by combining scores from standard and alternative MCAS tests. The CPI is calculated by multiplying the number of points earned at each performance level by the number of students, and dividing the total points by the total number of students. The document also includes CPI targets and past performance data for MHS in English Language Arts and Math, including among student subgroups.
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