High yield is not the same thing as a high acceptance rate.
Yield is the number of accepted students who matriculate at a given school.
Acceptance rate is the raw number of acceptances given out to the total number of applicants.
High yield medical school know their students will matriculate so they actually accept fewer students than similarly ranked schools with yield rates.
For example, UNM’s overall acceptance rate is 8%, but 83% of those 8% accepted enroll.