Sarah E BoslaughSarah E. Boslaugh, Ph.D., M.P.H., has over 20 years of experience in statistical analysis, grant writing, and teaching; her employers and clients have included the New York City Public Schools, Montefiore Medical Center, Kennesaw State Universty, Washington University School of Medicine, and Saint Louis University. She served as editor-in-chief for the Encyclopedia of Epidemiology (SAGE, 2007), and has published three additional books: An Intermediate Guide to SPSS Programming: Using Syntax for Data Management (SAGE, 2004), Secondary Data Sources for Public Health: A Practical Guide (Cambridge University Press, 2007), and Statistics in a Nutshell (O'Reilly, 2nd ed., 2012).Boslaugh received her Ph.D. in measurement and evaluation from the City University of New York Graduate Center and her M.P.H. from Saint Louis University. She is currently a technical writer and editor at Saint Louis University in Missouri. She specializes in data-based articles and explaining statistical principles to the general public. Her research interests include comparative health care delivery systems, quality of life measurement, and gender and sexuality issues in health care delivery. In her spare time, she reviews films and books for PopMatters (http: //www.popmatters.com) and Playback St. Louis (http: //www.playbackstl.com). Read More Read Less