Income level affects ACT results
The more low-income students a school serves, the lower the average ACT score is likely to be, a Daily Herald analysis shows.
Applying the Daily Herald's Poverty-Achievement Index to 2015 ACT scores shows how poverty can correlate to test scores.
ACT results from the 2015 Illinois School Report Cards show an average score of 23.5 in schools with the lowest number of low-income students (12.4 percent or fewer), while the ACT score drops to 16.1 in schools with 87.5 percent or more low-income students.
The results are consistent with those published with the Daily Herald's Generations At Risk series in June, which found that a school's low-income level is a frustratingly accurate predictor of achievement.