First there was a very brief phone screening by what seemed like a third party company then followed by a interview with mainly behavioral questions with 3 people who worked there.
Internship applicants have rated the interview process at PCORI 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 39.4% positive. This is according to Glassdoor user ratings.
Here are the most commonly searched roles for interview reports -