Repeatability and reproducibility of the luminescent bacteria bioassay

This paper presents the statistical analysis of the results of an inter-laboratory study for the luminescent bacteria toxicity bioassay. It also contains a discussion on the statistical methods for the presentation and refinement of the evaluation of the precision of an assay method (including intra- and inter-laboratory variability), with special emphasis on the rejection of outliers, and the use of standardized parameters, like the repeatability and reproducibility values.