Performance score

{
  "id": "MLC-T-CHM-008632",
  "term": "Performance score",
  "field": "Chemistry",
  "definition": "A quantitative measure used to evaluate the analytical capability of a laboratory or an individual analyst in a proficiency testing scheme. It assesses how closely a participant's measurement results align with the assigned reference value for a given analyte. A common example is the z-score, which indicates the deviation from the assigned value in terms of standard deviations.",
  "synonyms": [
    "performance statistic"
  ],
  "subject": "Analytical Chemistry",
  "see_also": [
    "proficiency testing",
    "proficiency testing scheme"
  ],
  "references": [
    "PAC, 2021, 93, 997. 'Metrological and quality concepts in analytical chemistry (IUPAC Recommendations 2021)' on page 1031 (https://doi.org/10.1515/pac-2019-0819)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/performance-score/"
}