At this point, all they have to go on in terms of academic evaluation is the prospect's GPA. There are no SAT subject tests and standardized tests are optional. There are no AP requirements.
That's kind of a joke because looking at an applicant's HS GPA is very subjective- almost meaningless. Identical GPAs from different HS, even from students taking similar classes, are not comparable. Some HS are more rigorous in their instruction and are tough in their grading process.
Other schools are the exact opposite. A similar argument can be made about the end of year HS class rank.