Understanding PT statistics


WordCloudRect90rThe Eurachem Guide on “Selection, Use and Interpretation of Proficiency Testing (PT) Schemes” recommends participants to consider the statistical approach used by the PT provider when selecting a PT scheme. This leaflet is intended to help participants in quantitative PT schemes to better understand the statistical parameters that are used in the PT report to describe the distribution of results reported by participants.


The leaflet is currently available in English.



Please consult the PT Working Group Chair if you would like to prepare a translation in your own language.



1. Dates show date of publication of the linked file on this website.