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  • Statistical aspects of two measurement problems : defining taxonomic richness and testing with unanchored responses

    Creator:
    Ritter, Kerry
    Abstract:
    Statisticians often focus on sampling or experimental design and data analysis while paying less attention to how the response is measured. However, the ideas of statistics may be applied to measurement problems with fruitful results. By examining the errors of measured responses, we may gain insight into the limitations of...
    Resource Type:
    Dissertation
    Full Text:
    investigation. We offer a relatively simple method for determining whether or not distributions of mean square

  • Analysis of epidemiological data with covariate errors

    Creator:
    Delongchamp, Robert
    Abstract:
    In regression analysis, random errors in an explanatory variable cause the usual estimates of its regression coefficient to be biased. Although this problem has been studied for many years, routine methods have not emerged. This thesis investigates some aspects of this problem in the setting of analysis of epidemiological data....
    Resource Type:
    Dissertation
    Full Text:
    most standard approaches, the "correction for attenuation" method, is poor relative to other methods