Join other iSixSigma newsletter subscribers:
FRIDAY, JULY 31, 2015
Font Size
Dictionary Kappa


The Kappa is the ratio of the proportion of times the appraisers (see Gage R&R) did agree to the proportion of times the appraisers could agree.

Kappa Statistics: If you have a known standard for each rating, you can assess the correctness of all appraisers’ ratings compared to the known standard. If Kappa = 1, then there is perfect agreement. If Kappa = 0, then there is no agreement. The higher the value of Kappa, the stronger the agreement. Negative values occur when agreement is weaker than expected by chance, but this rarely happens. Depending on the application, Kappa less than 0.7 indicates that your measurement system needs improvement. Kappa values greater than 0.9 are considered excellent.

Six Sigma Certification Online
Lean Six Sigma Green Belt and Black Belt Certification
Six Sigma Statistical and Graphical Analysis with SigmaXL
Lean and Six Sigma Project Examples
Six Sigma Online Certification: White, Yellow, Green and Black Belt

Login Form