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A parameterisation-invariant modification of the score test

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Jupp_2023_IE_Parameterisation_invariant_CC.pdf (284.1Kb)
Date
07/03/2023
Author
Jupp, P. E.
Keywords
Bartlett correction
Generalised Bartlett correction
Interest parameter
Invariant Taylor expansion
Large-sample asymptotics
Likelihood yoke
Tensor
QA Mathematics
Mathematics(all)
MCP
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Abstract
The null distribution of the score test statistic is asymptotically chi-squared for large samples. The error in this approximation is improved greatly by a cubic modification. The coefficients of this cubic that are given in the literature depend on the parameterisation. This paper provides parameterisation-invariant versions of the coefficients, expresses them in terms of appropriate tensors, and provides geometric interpretations.
Citation
Jupp , P E 2023 , ' A parameterisation-invariant modification of the score test ' , Information Geometry . https://doi.org/10.1007/s41884-023-00101-4
Publication
Information Geometry
Status
Peer reviewed
DOI
https://doi.org/10.1007/s41884-023-00101-4
ISSN
2511-2481
Type
Journal item
Rights
Copyright © The Author(s) 2023. Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
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  • University of St Andrews Research
URI
http://hdl.handle.net/10023/27156

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