It can add a common measure
University of Chicago can read an SAT or ACT beside students from very different high schools. The score may clarify academic preparation when the local transcript is unfamiliar, but its meaning still depends on course access and performance.
It cannot replace curriculum
The score should reinforce the transcript and intellectual work; it is not a substitute for the distinctive essays and academic curiosity UChicago evaluates. Admissions readers can see whether the student pursued the strongest appropriate sequence; a composite does not manufacture missing preparation.
It can reveal a section imbalance
UChicago superscores both SAT and ACT and lets applicants choose whether prior scores are considered. A section-level plan is therefore more useful than repeatedly chasing a round total without diagnosing the limiting skill.
It cannot predict admission
UChicago does not publish a minimum score and says submitted testing is used only when it helps the application. The cohort contains admitted students, not a mechanical rule. Students below, inside and above a range can receive different decisions because the application is broader.
It can guide timing
Applicants may self-report; official verification follows enrollment. The useful final sitting must leave enough time for the route University of Chicago accepts and for the applicant to confirm that the checklist is complete.
It cannot freeze the policy
For University of Chicago, current first-year policy describes the verified scope. Testing policies, optional sections and reporting instructions can change; the application term must remain attached to every operational decision.