TY - JOUR AU - Carifio, James PY - 2006 TI - Research Note: Standard Scores Based on the Median and Inter-quartile Range JF - Journal of Mathematics and Statistics VL - 2 IS - 1 DO - 10.3844/jmssp.2006.367.367 UR - https://thescipub.com/abstract/jmssp.2006.367.367 AB - 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.