On modelling overdispersion of counts

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    Abstract

    For counts it often occurs that the observed variance exceeds the nominal variance of the claimed binomial, multinomial or Poisson distributions. We study how models can be extended to cope with this phenomenon: a survey of literature is given. We focus on modelling, not on estimation or testing statistical hypotheses. The attention is restricted to independent observations.
    Original languageUndefined
    Pages (from-to)5-20
    Number of pages16
    JournalStatistica Neerlandica
    Volume1999
    Issue number53
    DOIs
    Publication statusPublished - 1999

    Keywords

    • extra-Poisson variation
    • extra-multinomial variation
    • METIS-140551
    • Models
    • Extra-binomial variation
    • IR-58501

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