A method to apply the robust estimator of dispersion, Qn, to fully-nested designs in the analysis of variance of microbiological count data

A J Hedges

doi:10.1016/j.mimet.2007.11.021

A method to apply the robust estimator of dispersion, Qn, to fully-nested designs in the analysis of variance of microbiological count data

J Microbiol Methods. 2008 Feb;72(2):206-7. doi: 10.1016/j.mimet.2007.11.021. Epub 2007 Dec 5.

Author

A J Hedges¹

Affiliation

¹ University of Bristol, Department of Cellular and Molecular Medicine, School of Medical Sciences, Bristol, United Kingdom. A.Hedges@bris.ac.uk

PMID: 18166237
DOI: 10.1016/j.mimet.2007.11.021

Abstract

This note outlines a method for the application of Rousseeuw's robust estimator of scale, Q(n), to fully-nested designs such as those used to estimate the components of variance in collaborative trials employed in quantitative food microbiology. A computer program is freely available on-line.

MeSH terms

Analysis of Variance
Colony Count, Microbial / methods*
Computer Simulation
Models, Statistical*