In a story published October 12, 2023, about Illinois' teacher shortage, The Associated Press erroneously reported Advance Illinois' findings on the number of districts in the state without a teacher credentialed to serve as principal. The organization found nearly half of districts do not, not more than half. The AP also erroneously reported the title of Ann Whalen. She is Advance Illinois' deputy director and director of policy, not the deputy director of policy.