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Influence Analysis of Ranking Data

Published online by Cambridge University Press:  01 January 2025

Wai-Yin Poon  and
Wai Chan
Wai-Yin Poon*
Affiliation:
The Chinese University of Hong Kong
Wai Chan
Affiliation:
The Chinese University of Hong Kong
*
Requests for reprints should be sent to Wai-Yin Poon, Department of Statistics, The Chinese University of Hong Kong, Shatin, HONG KONG. E-Mail: wypoon@cuhk.edu.hk
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Abstract

This paper develops diagnostic measures to identify those observations in Thurstonian models for ranking data which unduly influence parameter estimates that are obtained by the partition maximum likelihood approach of Chan and Bentler (1998). Diagnostic measures are constructed by employing the local influence approach that uses geometric techniques to assess the effect of small perturbations on a postulated statistical model. Very little additional effort is required to compute the proposed diagnostic measures, because all of the necessary building blocks are readily available after a usual fit of the model.

Keywords

ranking datapartition maximum likelihood estimationlocal influencediagnostic measure
Type
Articles
Information
Psychometrika , Volume 67 , Issue 3 , September 2002 , pp. 421 - 436
Copyright
Copyright © 2002 The Psychometric Society

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Footnotes

The work described in this paper was partially supported by the grants from the Research Grants Council of the Hong Kong Special Administrative Region, China (RGC Ref. No. CUHK4186/98P and RGC Direct Grant ID2060178). The authors are grateful to the Editor and four anonymous referees for their helpful comments.

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