Sarah Boslaugh received her PhD from the City University of New York and her MPH from Saint Louis University. She is currently a Performance Research Analyst for BJC Healthcare in Saint Louis, MO, and has previously worked as a biostatistician and methodologist at Montefiore Medical Center in New York City, Saint Louis University School of Public Health, and Washington University School of Medicine in Saint Louis. She has also written An Intermediate Guide to SPSS Programming: Using Syntax for Data Management and is editing the Encyclopedia of Epidemiology.