Papers & Articles

Articles by Mark Graban

Healthcare-Related Articles

The Works of Donald J. Wheeler, Ph.D.

  • His page with links to various papers and articles
  • When should we use the specialty charts for count data?
    • “Of course, you can guarantee that you have the right limits for your count-based data by simply using the XmR chart to begin with. The empirical approach will always be right.”
    • Quality Digest
  • When Should We Use Extra Detection Rules?
    • “Rule one strikes a balance between the consequences of either getting a false alarm or missing a signal of economic importance. Using additional detection rules shifts this balance. It skews the balance toward more false alarms in order to find smaller signals. This is generally unnecessary and should not be done without careful consideration of the situation at hand. Additional detection rules should very definitely not be used just because the software allows you to do so.”
    • Quality Digest