Once you get an interview, probably not a huge part of the selection process but undoubtedly they use it to screen for interviews. Pain fellows come from a variety of different specialities, different In training exams so you can’t really compare them to any of that. Also, to sit for the pain boards you have to pass your primary speciality boards and given that pain management is an insignificant portion of most of the primary specialities (anesthesiology, neurology, PMR) high step scores reflect how well the applicant does on standardized exams and whether they’ll be able to pass their primary boards.