Joseph C. Cappelleri earned his MS in statistics from the City University of New York (Baruch College), PhD in psychometrics from Cornell University, and MPH in epidemiology from Harvard University. Dr. Cappelleri is a senior director of biostatistics at Pfizer Inc. He has also served on the adjunct faculties at Brown University, Tufts Medical Center, and the University of Connecticut. A Fellow of the American Statistical Association, he has delivered numerous conference presentations and published extensively on clinical and methodological topics, including regression-discontinuity designs, meta-analysis, and health measurement scales. Dr. Cappelleri is the lead author of the book “Patient-Reported Outcomes: Measurement, Implementation and Interpretation.”