Episode 55 of CRAMSURG - Clinical Research Appraisal and Methodology for Surgical Trainees. The paper for discussion is A Retrospective Study Comparing the Operative Outcomes of Extraperitoneal, Retrorectus Access Laparoscopic and Robotic‐Assisted Ventral Hernia Repairs, WJS May 2025. The teaching topic is a practical guide to statistical tests - part 7: Pearson's correlation coefficient. Brought to you by CRAMSURG www.cramsurg.org.