Dr. Shrikant I. Bangdiwala, PhD is professor in the Department of Health Research Methods, Evidence and Impact and Statistics Director, Population Health Research Institute at McMaster University, Hamilton, Canada. He has extensive experience in the design, conduct and analysis of multi-center observational and experimental studies, having worked on clinical and community-based randomized controlled trials in congestive heart failure, cardiovascular risk factors, functional bowel disease, and obesity prevention. Dr. Bangdiwala also has extensive experience as a member and chair of various data and safety monitoring boards (DSMB) and currently chairs the Multinational DSMB for the Division of AIDS at NIH, and is a member of the Gastrointestinal Drugs Advisory Committee of the FDA. His statistical research interests include nonparametric methods, methodology for clinical trials, reliability and validity of diagnostic tests, and graphical methods for descriptive analyses. He is well-known as the author of the agreement chart. He is a former Fulbright ‘Senior Specialist’ in Global Public Health. He has taught extensively internationally, and holds faculty positions in universities in Chile, at the University of South Africa, and at Christian Medical College, Vellore, India.