Karen Jones, M.S., is a senior research scientist with George Washington University's Biostatistics Center and the Center for Health Services Research and Policy. She has used SAS extensively for data management as well as statistical analysis on many diverse projects. Her primary project responsibilities include designing data collection protocols, understanding current hospital sampling methodologies, and reviewing and analyzing hospital quality data, power calculations, and determinations of statistical significance. Ms. Jones has a B.A. from Tulane University and a master of applied statistics degree from Louisiana State University as well as additional graduate coursework in sampling from the University of Maryland and in multivariate statistics from The George Washington University.