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Massachusetts Comprehensive Assessment System

Growth Model

Student Growth Percentiles (SGPs) complement the MCAS year-by-year test scores. They measure change in achievement over time rather than grade-level achievement results in any one year. Growth scores are available for schools, districts, and students taking the standard MCAS test in grades 4-8 and 10 in English language arts and mathematics.

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Access school and district growth results
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Letter to Educators Explaining the Growth Model
MCAS Student Growth Percentiles Tutorial Series. Narrated tutorials explaining the basics of student growth percentiles.
Watch Video Tutorial 1 — The Basics of the Growth Model
Watch Video Tutorial 2 — Understanding Growth on the MCAS Parent Report
Watch Video Tutorial 2 — Spanish Version
Watch Video Tutorial 2 — Portuguese Version
Watch Video Tutorial 2 — Haitian Creole Version
Watch Video Tutorial 2 — Chinese Version
Watch Video Tutorial 2 — Vietnamese Version
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MCAS Student Growth Percentiles: Interpretive Guide is designed for educators and other interested stakeholders who would like to understand the Massachusetts growth model.
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Frequently Asked Questions

Other Resources

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Visual Explanation of Academic Peers
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Presenting the growth model to a constituent group? Use the Growth Model PowerPoint
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MCAS Student Growth Percentiles: 2009 State Report
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Lessons from the Growth Model Pilot (Spring 2009)
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Technical paper: "Growth, Standards, and Accountability"

Growth Reports on the Education Data Warehouse

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District administrators also have access to growth data in the Education Data Warehouse by way of the Security Portal.
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Quick Start Guide: Accessing Growth Reports in the Education Data Warehouse
Data Warehouse Growth Tutorial 1 — Introduction to Growth
Data Warehouse Growth Tutorial 2 — Scatter Plots
Data Warehouse Growth Tutorial 3 — Stacked Bar Charts

Contact with any questions about accessing or interpreting growth results.

Last Updated: October 12, 2012

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Massachusetts Department of Elementary and Secondary Education
75 Pleasant Street, Malden, MA 02148-4906

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TTY: (800) 439-2370


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