Journal of Mathematics and Statistics

Research Note: Standard Scores Based on the Median and Inter-quartile Range

James Carifio

DOI : 10.3844/jmssp.2006.367.367

Journal of Mathematics and Statistics

Volume 2, Issue 1

Pages 367-367


Recently when asked to help with statistical analyses of the Medicare Provider Analysis and Review (MEDPar) Data, I encountered a common statistical and analytical problem with this national database, which is also common to many national and health databases. This problem was the problem of extremely skewed distributions (g1 and/or g2 typically exceeding 20), which creates numerous difficulties in comparing and interpreting values and results both between and within variables, never mind statistically testing them.


© 2006 James Carifio. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.