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Test scores

ISASP, SY 2023-24

All grades, all students. % Proficient.
English Language Arts
86.2%
State avg 72.7%
District avg 83.2%
County avg 78.7%
Mathematics
75.1%
State avg 69.8%
District avg 74.6%
County avg 77.1%
Science
82.4%
State avg 61.5%
District avg 79.6%
County avg 66.7%

BeatsExpectations

Demographically-adjusted score · methodology
Tier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
80.8%
composite math + reading, all grades
Predicted
79.0%
based on IA schools with similar FRL share
Beats by
+1.8pp
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 2023-24

School score vs state average per tested grade.
GradeEnglish Language ArtsMathematicsScience
SchoolStaten testedSchoolStaten testedSchoolStaten tested
Grade 571.4%68.9%5660.7%70.7%5675.0%59.5%56
Grade 687.8%74.4%4971.4%71.2%49N/AN/AN/A
Grade 791.2%77.2%5784.2%69.9%57N/AN/AN/A
Grade 893.7%77.4%6382.5%73.2%6388.9%65.5%63

1-year history

All grades, all students. Interstate 35   Iowa avg

English Language Arts

73862023-24
YearSchoolDistrictCountyState
SY 2023-2486.2%83.2%78.7%72.7%

Mathematics

70752023-24
YearSchoolDistrictCountyState
SY 2023-2475.1%74.6%77.1%69.8%

Science

62822023-24
YearSchoolDistrictCountyState
SY 2023-2482.4%79.6%66.7%61.5%

How to read these scores

What is ISASP?
ISASP is the statewide standardized test administered by Iowa public schools.
What does "% 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 86.2% mean for English Language Arts at Interstate 35 Middle School?
It means about 86.2 percent of students tested at Interstate 35 Middle School performed at grade level or above on the ISASP English Language Arts test in 2023-24. The statewide average for Iowa that year was 72.7%. 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 Iowa, 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?
Iowa Department of Education, Iowa State Assessment of Student Progress (ISASP). School-level data by grade and subject from educate.iowa.gov. Headline metric is the cumulative "Proficient" rate (Proficient + Advanced, top 2 of 3 ISASP levels).
How often is it updated?
ISASP 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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