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Test scores

Mason Creek Middle School · Winston, GA
See how it ranks: all Georgia schools by score · Douglas County schools by score

Georgia Milestones, SY 2024-25

All grades, all students. % Proficient or Distinguished.
English Language Arts
40.6%
State avg 40.1%
District avg 35.1%
County avg 35.1%
-2.5pp since 2021-22
Mathematics
45.5%
State avg 44.6%
District avg 33.9%
County avg 33.9%
+10.1pp since 2021-22
Science
49.3%
State avg 40.6%
District avg 35.3%
County avg 35.3%
-8.0pp since 2021-22
Social Studies
34.8%
State avg 39.3%
District avg 33.9%
County avg 33.9%
-10.7pp since 2021-22

BeatsExpectations

Demographically-adjusted score · methodology
Tier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
46.2%
composite math + reading, all grades
Predicted
42.0%
based on GA schools with similar FRL share
Beats by
+4.2pp
above demographic expectation
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →

By grade, SY 2024-25

School score vs state average per tested grade.
GradeEnglish Language ArtsMathematicsScienceSocial Studies
SchoolStaten testedSchoolStaten testedSchoolStaten testedSchoolStaten tested
Grade 638.0%41.4%25839.4%37.7%259N/AN/AN/AN/AN/AN/A
Grade 744.9%40.9%27440.7%40.6%275N/A0.0%N/AN/A0.0%N/A
Grade 838.9%40.1%28049.1%47.7%28149.3%29.0%27634.8%39.3%276
Grade HSN/AN/AN/A97.3%49.1%37N/A46.2%N/AN/AN/AN/A

4-year history

All grades, all students. Mason Creek   Georgia avg

English Language Arts

39432021-2240492022-2342452023-2440412024-25
YearSchoolDistrictCountyState
SY 2024-2540.6%35.1%35.1%40.1%
SY 2023-2445.0%36.9%36.9%41.8%
SY 2022-2348.8%37.5%37.5%39.6%
SY 2021-2243.2%37.1%37.1%38.5%

Mathematics

38352021-2239382022-2343432023-2445462024-25
YearSchoolDistrictCountyState
SY 2024-2545.5%33.9%33.9%44.6%
SY 2023-2443.2%30.6%30.6%42.9%
SY 2022-2338.1%27.7%27.7%39.0%
SY 2021-2235.5%28.7%28.7%38.2%

Science

39572021-2238562022-2339562023-2441492024-25
YearSchoolDistrictCountyState
SY 2024-2549.3%35.3%35.3%40.6%
SY 2023-2456.3%31.6%31.6%38.9%
SY 2022-2356.2%32.5%32.5%38.5%
SY 2021-2257.3%34.2%34.2%39.3%

Social Studies

38462021-2236412022-2338442023-2439352024-25
YearSchoolDistrictCountyState
SY 2024-2534.8%33.9%33.9%39.3%
SY 2023-2443.7%32.9%32.9%37.6%
SY 2022-2341.3%31.9%31.9%36.2%
SY 2021-2245.5%33.4%33.4%37.6%

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How to read these scores

What is Georgia Milestones?
Georgia public-school students in grades 3 through 8 take the Georgia Milestones End-of-Grade (EOG) tests in English Language Arts, Math, Science (grades 5/8), and Social Studies (grade 8). High school students take End-of-Course (EOC) Milestones in American Literature, Algebra, Biology, and US History.
What does "% Proficient or Distinguished" mean?
It is the percentage of students at the school who scored at "Proficient Learner" or "Distinguished Learner" on Georgia Milestones (top 2 of 4 performance levels: Beginning, Developing, Proficient, Distinguished). Proficient and above means the student is performing at or beyond grade level. A higher number is better.
What does 40.6% mean for English Language Arts at Mason Creek Middle School?
It means about 40.6 percent of students tested at Mason Creek Middle School performed at grade level or above on the Georgia Milestones English Language Arts test in 2024-25. The statewide average for Georgia that year was 40.1%. The other students fell into the lower performance levels.
How is the state average calculated?
It is a weighted average, not a simple average of each school's number. We multiply each public school's score by how many of its students tested, add those together for all schools in Georgia, and divide by the total students tested that year. This way a big school with 1,500 students counts more than a small school with 50 students, which is the right way to ask "how did the typical student do this year?". District and county averages on this page use the same method, just scoped to that district or county.
Where does this data come from?
Georgia Department of Education + Governor's Office of Student Achievement (GOSA), Georgia Milestones Assessment System (GMAS) End-of-Grade (grades 3-8) and End-of-Course (high school) assessments. School-level results from the GOSA Downloadable Data Repository. Headline metric is the cumulative "Proficient or Distinguished Learner" rate (top 2 of 4 Milestones performance levels).
How often is it updated?
Georgia Milestones is administered once a year (spring). Results are released by the state in the summer or early fall. We refresh this page after each annual release.

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