Information on Student Growth in Michigan

Student Growth Percentiles (SGPs) and Adequate Growth Percentiles (AGPs)

  • How is individual student growth measured?

    • Individual student growth is determined by a student's Student Growth Percentile, or SGP.

  • What is an SGP?

    • Student Growth Percentiles (SGPs) represent one powerful way to quantify the learning of individual students over one or more years. Conceptually, SGPs communicate the degree to which a student has learned in a particular domain, compared to a group of academic peers who had a comparable score on the previous test (or multiple previous tests) in that subject. In order to calculate SGPs, students are grouped with academic peers throughout the state who had comparable score patterns on past tests. Students in each academic peer group are then ordered based on their score on the current year test. Each student then receives a percentile rank, compared to their academic peers. Like other percentile scores, SGPs range from 0-99, where a SGP of 50 indicates that the student demonstrated growth in the content area equal or greater to half of students with comparable score histories on that subject-matter test.

      SGPs can be used to determine Adequate Growth Percentiles (AGPs). AGPs identify whether students are demonstrating high enough levels of learning to be on a path to reach, or maintain, proficiency within a set timeframe.

    • One-page overview on SGPs: http://www.michigan.gov/documents/mde/Student_Growth_Percentiles_475671_7.pdf 

    • Policy brief on SGPs: http://www.michigan.gov/documents/mde/SGP_Policy_Brief_475670_7.pdf 

  • Where can Student Growth reports using SGPs be viewed?

    • Public and schools can access student growth reports on MISchoolData.org.

    • Schools can securely access student growth reports in the dynamic reports section of the Secure Site at mi.gov/oeaa-secure. SGP and AGPs are also provided in the accountability data files on the Secure Site.

  • What SGP values represent significant growth?

    • SGPs allow an additional growth indicator to be computed that determines the growth necessary for a student to demonstrate high enough levels of learning to be on a path to reach, or maintain proficiency on student assessments. These are known as Adequate Growth Percentiles (AGPs). 

  • What are Adequate Growth Percentiles?

  • How are SGPs and AGPs used in school accountability?

    • Student Growth Percentiles are used in combination with Adequate Growth Percentiles to make school-level growth determinations in the School Index system. More information on the School Index system can be found at mi.gov/mde-accountability.

  • Are there technical business rules available for the SGP calculation methodology?

Additional Student Growth Information and Resources

For more information on how SGPs could be used in evaluation, please contact Brian Lloyd at 517-373-0739 or MDE-EdEvals@michigan.gov.

For information on how SGPs and AGPs are used in Michigan's school accountability system, please contact 877-560-8378 or MDE-Accountability@michigan.gov.