Tara Eicher is a postdoctoral research fellow in the Department of Biostatistics at the Harvard T.H. Chan School of Public Health. Stephen Morrissey, the interviewer, is the Executive Managing Editor of the Journal. T. Eicher, J. Quackenbush, and A. Ne’eman. Challenging Claims of an Autism Epidemic — Misconceptions and a Path Forward. N Engl J Med 2026;