It was three stages.
First HR, then with the admissions head, then with three people from the admissions team.
I was rejected in the third interview. They didn't even respond to me after the third interview!
Interview questions [1]
Question 1
How do you handle the challenges of the job? What is your strategy to handle stress in a fast-paced job?
I applied online. The process took 2 weeks. I interviewed at Adler University (Chicago, IL) in Oct 2021
Interview
Initial phone screen with HR then two rounds of interviews: first was an interview with the entire admissions team, second round was a presentation to the admissions team for a hypothetical "open house" for prospective students
I sumbitted a cover letter and cv. I went through one interview and did not pass. I presume there are more interviews after. The interview was fairly standard. They asked about my previous research experience.