A simple and intuitive test for number-inflation or number-deflation

Wilson, Paul; Einbeck, Jochen

A simple and intuitive test for number-inflation or number-deflation

Wilson, Paul; Einbeck, Jochen

Authors

Paul Wilson

Professor Jochen Einbeck jochen.einbeck@durham.ac.uk
Professor

Contributors

Helga Wagner
Editor

Herwig Friedl
Editor

Abstract

We present a test of zero-modification which checks if the number of zeros is consistent with the hypothesized count distribution. This test is easily extended to test for inflation or deflation of any non-negative values, and, by performing multiple tests of inflation/deflation of the counts present in observed data relative to any given model, it is possible to assess the suitability of that model. Such multiple testing may be represented diagrammatically. The test for number-inflation/deflation is informally called the “Christmas Eve Test” as the original idea occurred to the main author on December 24th, 2014, and the diagrammatic method the “Durham Diagram” as it was developed during preparation for a talk at Durham University.

Citation

Wilson, P., & Einbeck, J. (2015). A simple and intuitive test for number-inflation or number-deflation. In H. Wagner, & H. Friedl (Eds.), Proceedings of the 30th International Workshop on Statistical Modelling. Linz, Austria, 6-10 July 2015 (299-302)

Conference Name	30th International Workshop on Statistical Modelling
Conference Location	Linz, Austria
Start Date	Jul 6, 2015
End Date	Jul 10, 2015
Acceptance Date	Mar 18, 2015
Publication Date	Jul 10, 2015
Deposit Date	Jan 8, 2016
Publicly Available Date	Feb 2, 2016
Volume	2
Pages	299-302
Book Title	Proceedings of the 30th International Workshop on Statistical Modelling. Linz, Austria, 6-10 July 2015.
Public URL	https://durham-repository.worktribe.com/output/1152637
Publisher URL	http://www.statmod.org/workshops_archive_proceedings_2015.htm
Additional Information	Conference Dates: 6-10 July 2015