If you pass the calculus tests, you sit down with the assistant director and you go over the mistakes you've made. But once you've made it this far, to the interview, you're pretty much assured the job.
Academic Tutor applicants have rated the interview process at UT Dallas with 3 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 100% positive. To compare, the company-average is 85.6% positive. This is according to Glassdoor user ratings.
Here are the most commonly searched roles for interview reports -