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Test scores

AK STAR + Alaska Science, SY 2024-25

All grades, all students. % Advanced + Proficient.
English Language Arts
64.7%
State avg 36.1%
District avg 37.1%
County avg 37.1%
+4.5pp since 2023-24
Mathematics
64.4%
State avg 34.6%
District avg 33.5%
County avg 33.5%
-7.0pp since 2023-24
Science
65.9%
State avg 43.1%
District avg 42.4%
County avg 41.9%
-18.9pp since 2023-24

What this means: On the AK STAR + Alaska Science, Alaska's statewide test, about 65 of every 100 students at this school read and write at grade level, about 64 of 100 do math at grade level, and about 66 of 100 are at grade level in science. Across all Alaska schools, those numbers are about 36, 35, and 43. Reading and writing scores are up about 5 points since 2023, while math scores are down about 7 points and science scores are down about 19 points.

BeatsExpectations

Demographically-adjusted score · methodology
Tier
OUTPERFORMING
Top 10% of AK schools after controlling for student poverty
Actual proficiency
68.6%
composite math + reading, all grades
Predicted
49.1%
based on AK schools with similar FRL share
Beats by
+19.4pp
above demographic expectation

What this means: About 69% of students here test proficient in math and reading, well above the roughly 49% typical for Alaska schools with a similar share of low-income students. BeatsExpectations ranks schools against others at the same poverty level, not by raw scores, so a school can post high scores and still fall short of its prediction, or post lower scores and still beat it. This school clears its prediction by about 19 points, placing it in Alaska's top 10%.

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 ArtsMathematicsScience
SchoolStaten testedSchoolStaten testedSchoolStaten tested
Grade ALL64.7%36.1%13364.4%34.6%13365.9%43.1%44

2-year history

All grades, all students. Watershed Charter   Alaska avg

English Language Arts

35602023-2436652024-25
YearSchoolDistrictCountyState
SY 2024-2564.7%37.1%37.1%36.1%
SY 2023-2460.2%36.0%36.0%35.2%

Mathematics

34712023-2435642024-25
YearSchoolDistrictCountyState
SY 2024-2564.4%33.5%33.5%34.6%
SY 2023-2471.4%32.7%32.7%34.3%

Science

42852023-2443662024-25
YearSchoolDistrictCountyState
SY 2024-2565.9%42.4%41.9%43.1%
SY 2023-2484.8%44.6%46.4%41.8%

How to read these scores

What is AK STAR + Alaska Science?
AK STAR + Alaska Science is the statewide standardized test administered by Alaska public schools.
What does "% Advanced + Proficient" mean?
It is the share of students at the school who performed at grade level or above on the test, summed across the top two of four performance levels. A higher number is better.
What does 64.7% mean for English Language Arts at Watershed Charter School?
It means about 64.7 percent of students tested at Watershed Charter School performed at grade level or above on the AK STAR + Alaska Science English Language Arts test in 2024-25. The statewide average for Alaska that year was 36.1%. 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 Alaska, 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?
Alaska Department of Education and Early Development, AK STAR (ELA + Math grades 3-9) and Alaska Science (grades 5, 8, 10). School-level All Students rollup scraped from the per-school assessment-results pages on education.alaska.gov. Headline metric is the cumulative "Advanced + Proficient" rate (top 2 of 4 levels).
How often is it updated?
AK STAR + Alaska Science 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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