The problem with total error models in establishing performance specifications and a simple remedy.

  • Jan S. Krouwer
  • Published 2016 in Clinical chemistry and laboratory medicine


A recent issue in this journal revisited performance specifications since the Stockholm conference. Of the three recommended methods, two use total error models to establish performance specifications. It is shown that the most commonly used total error model - the Westgard model - is deficient, yet even more complete models fail to capture all errors that… (More)
DOI: 10.1515/cclm-2015-1175


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