Student Growth Percentiles (SGPs)

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 1-99, where a SGP of 50 indicates that the student demonstrated growth in the content area equal or greater to half of the students with comparable score histories on that subject-matter test.

Thumbnail: MDE SGP Technical Guidance Document

MDE SGP Technical Guidance Document (updated 10-15-2019)

This document provides step-by-step instructions on how to access and calculate a mean SGP to determine an educator evaluation student growth rating for state assessment data using a Microsoft Excel tool developed by the MDE.


Thumbnail: MDE SGP Educator Evaluation Calculator Tool - Example Data


MDE SGP Educator Evaluation Calculator Tool - Example Data (updated 12-16-2019)

MDE SGP Educator Evaluation Calculator Tool - No Example Data (updated 12-16-2019)

NOTE: BAA Secure Site file format was changed in August, and only MDE SGP Calculator Tool files that have update dates of August or later will function correctly.  The MDE SGP Educator Evaluation Calculator Tool is designed to automate calculations consistent with the policies recommended by the Michigan Department of Education, and the use of this tool is recommended for the use of state assessment data to determine student growth ratings for educator evaluations.



Thumbnail: What is a Student Growth Percentile?

What is a Student Growth Percentile?

This document provides an overview of student growth percentiles.



Thumbnail: Student Growth Percentile Policy Brief

Student Growth Percentile Policy Brief

This document provides a policy brief for Student Growth Percentiles in Michigan.


Information on Student Growth Percentiles Use in Michigan
  • Where can Student Growth reports using SGPs be viewed?

    • Public and schools can access student growth reports on

    • Schools can securely access student growth reports in the dynamic reports section of the Secure Site at

  • How are SGPs 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


Additional Student Growth Percentiles Information and Resources

For more information on how SGPs could be used in evaluation, please contact

For information on how SGPs are used in Michigan's school accountability systems, please contact