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    Is your 'homogeneity test' really useful?

    Thompson, Michael (2015) Is your 'homogeneity test' really useful? Analytical Methods 7 (4), pp. 1627-1629. ISSN 1759-9660.

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    Abstract

    ‘Homogeneity testing’ is a formal requirement in the preparation of reference materials for certification and for proficiency testing. Few scientists, however, seem to be aware of the rather severe limitations that apply to the outcome of any such test of a size that is economically feasible. Typically the tests have low statistical power to detect significance, and the resulting estimates of between-bottle standard deviation have wide confidence limits. Scientists should bear these limitations in mind and avoid being over-prescriptive when drafting standards and guides.

    Metadata

    Item Type: Article
    School: Birkbeck Schools and Departments > School of Science > Biological Sciences
    Depositing User: Administrator
    Date Deposited: 24 Mar 2015 10:43
    Last Modified: 24 Mar 2015 10:43
    URI: http://eprints.bbk.ac.uk/id/eprint/11856

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