The achievement gap shows an 7.7-point decline in scores between white and black students. Of the 553 students enrolled in 2018, 55.7 percent were white – or 308 students.
The achievement gap measures how one group of students academically outperforms another. The Illinois State Board of Education collects data on the persistent gap between groups by race and ethnicity, income level and gender.
The Partnership for Assessment of Readiness for College and Careers, or PARCC, is administered to third- through eighth-graders in Illinois, testing them in reading and math based on Common Core standards. A composite score combines the results of the subject tests.
According to Cortland Elementary School composite scores for 2018, 30.9 percent of white students passed the tests. Meanwhile, 15.7 percent of black students passed.
Students who passed either met or exceeded expectations are considered prepared for the next grade level, college or work. Students who failed either partially met, approached or did not meet expectations.
The achievement gap is larger for English language arts scores and smaller for math scores.
There is a 24.2-point gap between white and black students' English language arts scores in 2018 – a 0.9 point improvement since 2017. In 2018, 36.7 percent of white students passed the reading subject test. Meanwhile, 12.5 percent of black students passed.
There was a 6.3-point gap between white and black students' math scores in 2018: 25.1 percent of white students passed while 18.8 percent of black students passed.
Cortland Elementary School's white vs. black achievement gap over 4 years
The achievement gap at DeKalb County schools
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