Dupage Policy Journal

Despite dismal student performance on annual exams covering math and reading, DuPage County high school graduation rates remain high, according to a DuPage Policy Journal analysis of 2016 data from the Illinois State Board of Education.

Of the 23 schools analyzed within the county, Community High School showed the greatest disparity. In a year when 97 percent of seniors graduated on time, just 20 percent of students actually passed annual tests that the state uses to determine who is "ready for the next level."

The end-of-year tests known as the Partnership for Assessment of Readiness for College and Careers, or PARCC, are administered to third- through eighth-graders in Illinois, testing them based on Common Core standards. High-schoolers also took the tests through 2016. 

A composite score combines the results of the subject tests. Students whose scores either meet or exceed expectations are considered "ready for the next level."

Schools' graduation fraud index shows the difference between the composite passing rate and the graduation rate.

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DuPage County schools graduation fraud index

DuPage County high school	School district	City	Annual exam pass rate (%)	Graduation rate (%)	Graduation fraud index
Community High School	Chsd 94	West Chicago	20.1	97	-76.9
Glenbard North High School	Glenbard Twp Hsd 87	Carol Stream	24.1	92.7	-68.6
Glenbard East High School	Glenbard Twp Hsd 87	Lombard	21.8	89.5	-67.7
Westmont High School	Cusd 201	Westmont	28.8	94.4	-65.6
Addison Trail High School	Dupage Hsd 88	Addison	21	86	-65
Glenbard South High School	Glenbard Twp Hsd 87	Glen Ellyn	30.9	95	-64.1
Glenbard West High School	Glenbard Twp Hsd 87	Glen Ellyn	33.1	94.8	-61.7
Comm High School Dist 99 - South High School	Chsd 99	Downers Grove	32.5	92.4	-59.9
Fenton High School	Fenton Chsd 100	Bensenville	29.4	84.7	-55.3
Comm H S Dist 99 - North H S	Chsd 99	Downers Grove	42.1	95.4	-53.3
Lake Park High School	Lake Park Chsd 108	Roselle	39.2	92.3	-53.1
Willowbrook High School	Dupage Hsd 88	Villa Park	35.3	86	-50.7
York Community High School	Elmhurst Sd 205	Elmhurst	45.1	94.1	-49
Lisle High School	Lisle Cusd 202	Lisle	46.4	93.8	-47.4
Hinsdale South High School	Hinsdale Twp Hsd 86	Darien	45.5	92.8	-47.3
Wheaton Warrenville South H S	Cusd 200	Wheaton	49.6	94.2	-44.6
Waubonsie Valley High School	Indian Prairie Cusd 204	Aurora	49.5	94.1	-44.6
Hinsdale Central High School	Hinsdale Twp Hsd 86	Hinsdale	53.1	94.6	-41.5
Metea Valley High School	Indian Prairie Cusd 204	Aurora	55.7	95.6	-39.9
Neuqua Valley High School	Indian Prairie Cusd 204	Naperville	59.8	97	-37.2
Wheaton North High School	Cusd 200	Wheaton	55.6	92.7	-37.1
Naperville North High School	Naperville Cusd 203	Naperville	67.1	98	-30.9
Naperville Central High School	Naperville Cusd 203	Naperville	69.5	96.9	-27.4

Source: Illinois State Board of Education