A score test for zero inflation in a Poisson distribution

J. Van den Broek

doi:10.2307/2532959

A score test for zero inflation in a Poisson distribution

J. Van den Broek^*

^*Corresponding author for this work

Utrecht University

Research output: Contribution to journal › Article › Academic › peer-review

Abstract

When analyzing Poisson-count data sometimes a lot of zeros are observed. When there are too many zeros a zero-inflated Poisson distribution can he used. A score test is presented to test whether the number of zeros is too large for a Poisson distribution to fit the data well.

Original language	English
Pages (from-to)	738-743
Number of pages	6
Journal	Biometrics
Volume	51
Issue number	2
DOIs	https://doi.org/10.2307/2532959
Publication status	Published - 8 Aug 1995

Keywords

Poisson
Score test
Zero inflation

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.2307/2532959

Cite this

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title = "A score test for zero inflation in a Poisson distribution",

abstract = "When analyzing Poisson-count data sometimes a lot of zeros are observed. When there are too many zeros a zero-inflated Poisson distribution can he used. A score test is presented to test whether the number of zeros is too large for a Poisson distribution to fit the data well.",

keywords = "Poisson, Score test, Zero inflation",

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year = "1995",

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AB - When analyzing Poisson-count data sometimes a lot of zeros are observed. When there are too many zeros a zero-inflated Poisson distribution can he used. A score test is presented to test whether the number of zeros is too large for a Poisson distribution to fit the data well.

KW - Poisson

KW - Score test

KW - Zero inflation

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ER -

A score test for zero inflation in a Poisson distribution

Abstract

Keywords

UN SDGs

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