A generalisation of the tail-based P-value to characterise the conformity of trinomial proportions to prescribed norms

Newcombe, Robert Gordon ORCID: https://orcid.org/0000-0003-4400-8867 and Farrier, Sarah Louise 2008. A generalisation of the tail-based P-value to characterise the conformity of trinomial proportions to prescribed norms. Statistical Methods in Medical Research 17 (6) , pp. 609-619. 10.1177/0962280207082391

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Abstract

The traditional concept of a P-value comparing an observed binomial probability to a prescribed value is extended to the ordered trinomial case in which target proportions have been specified for `excellent', `acceptable' and `unacceptable' quality. The resulting trinomial probabilities are summarised by calculating two aggregate probabilities, relating to outcomes unequivocally better than, and unequivocally worse than, that actually observed, based on these assumed target proportions. Accumulations of exactly calculated tail probabilities on a mid-P basis are recommended.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Medicine
Subjects:	R Medicine > R Medicine (General)
Publisher:	SAGE Publications
ISSN:	0962-2802
Last Modified:	20 Oct 2022 08:57
URI:	https://orca.cardiff.ac.uk/id/eprint/30190

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