
Southern Illinois University at Carbondale is test optional, meaning that applicants are not required to submit standardized test scores for admission. Additionally, the university allows self-reporting of scores, which enables students to include their test results on their application without needing to provide official documents initially. Among applicants, 36% choose to submit SAT scores, while 11% submit ACT scores. The combined total of 47% indicates that some students report both types of scores.