1. is assistant professor, Department of Surgery, University of Minnesota, Minneapolis, Minnesota.
2. is research fellow, Center for Surgical Training and Research, Department of Surgery, University of Michigan, Ann Arbor, Michigan.
3. is research analyst, Center for Surgical Training and Research, Department of Surgery, University of Michigan, Ann Arbor, Michigan.
4. is senior data analyst, Accreditation Council for Graduate Medical Education, Chicago, Illinois.
5. is assistant professor, Department of Learning Health Sciences, University of Michigan, Ann Arbor, Michigan.
6. is project manager, Center for Surgical Training and Research, Department of Surgery, University of Michigan, Ann Arbor, Michigan.
7. is a biostatistician, Consulting for Statistics, Computing, and Analytics Research, University of Michigan, Ann Arbor, Michigan.
8. is research analyst, Center for Healthcare Outcomes and Policy, Department of Surgery, University of Michigan, Ann Arbor, Michigan.
9. is program manager, Center for Surgical Training and Research, Department of Surgery, University of Michigan, Ann Arbor, Michigan.
10. is professor, Department of Health Management and Policy, School of Public Health, University of Michigan, Ann Arbor, Michigan.
11. is professor and chair, Division of Biostatistics, School of Public Health, University of Michigan, Ann Arbor, Michigan.
12. is professor, Department of Surgery, University of Toronto, Toronto, Ontario, Canada.
13. is professor and chair, Department of Surgery, University of Michigan, Ann Arbor, Michigan.
14. is chief research, Milestone Development, and evaluation officer, Accreditation Council for Graduate Medical Education, Chicago, Illinois.
15. is director, Center for Surgical Training and Research, and assistant professor, Department of Surgery, University of Michigan, Ann Arbor, Michigan.