https://doi.org/10.1351/goldbook.08095
Statistic, derived from a result reported by a participant in a proficiency testing scheme, used in interpretation of participant performance and to allow comparison with defined objectives.
Notes:
- The purpose of a performance score is to express the deviation of the reported value from the assigned value in a proficiency testing scheme in a manner that allows comparison with performance criteria.
- Names and defining equations of frequently used performance scores are listed in Table 1. Their definitions and interpretations are given in ISO/IEC 17043 and ISO 13528.