Dr Darren Dahly is the Principal Statistician of the HRB Clinical Research Facility University College Cork, and a Senior Lecturer in Research Methods in the UCC School of Public Health. He consults and collaborates on a wide variety of patient-focused studies in and around Cork, and teaches postgraduates about clinical trial study design and analysis, reproducible research methods, and critical appraisal skills. You can also find him talking about trial methods on Twitter @statsepi.