PARTICIPATION IS BY INVITATION ONLY (free of charge/nominal charge). Typically limited to 20 or less participants. Opportunity to investigate feasibility of EQA/PT provision in a given area; potentially identify any gross testing errors in the field. Number of distribution(s) and source of EQA/PT material issued may be variable. Aim is to establish a suitable samples matrix and troubleshoot any issues in trial process. May be funded by sponsorship and findings may published in peer reviewed literature. An experimental study may not proceed to the developmental phase.
Previously known as ‘pre-pilot’.