The objective our proficiency testing is to perform an evaluation of laboratory performance by comparing results. For the analysis of the data, assumptions haven into account to draw consistent conclusions from the results.
The statistical treatment is performed according to ISO 13528:2015. “Statistical methods for use in proficiency testing by interlaboratory comparisons”.
The method for estimating the assigned value is defined and approved by the our specialized commission.
Just before the statistical treatment, a exploratory data analysis is performed according to the following criteria:
✅ Traceability of the provided result (checking of the sample identification number)
✅✅ Integrity (through scheduled Audit Trail logging);
✅✅✅ Visual (expression of the result, data input error);
✅✅✅✅ Technical (according to standard method used);
✅✅✅✅✅ Statistical analysis (hypothesis testing, observed distributions, outliers detection);
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