Oxford has many of their own admissions tests in addition to the core ACT/SAT/AP requirements for US applicants. Performance on those tests can be the difference maker in getting shortlisted for interview. Having APs in hand at the time of application is also helpful for US students as it shows their ability to perform on that kind of year long material exam. Having Calc BC, Physics C (both) and CS-A 5s in hand certainly helped my son’s Oxford admissions process.
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