annuncio seminario

[Elena Stanghellini <stanghel>]

Seminari del Dipartimento di Scienze Statistiche, Universita' di Perugia.

Prof Brian Francis, Universita' di Lancaster (UK).

Venerdi' 1 marzo  ore 15:00, Aula interna del Dipartimento.

Titolo: Analysing partial ranks using  smoothed paired comparison methods.


Abstract: The paired comparison model is introduced as a suitable
approach for the analysis of partially ranked data. For example,
the Inglehart index, collected in international social surveys to
examine shifts in an individual's post-materialistic values, generates such 
data
on a set of attitude items. However, current analysis methods have
failed to account for the complex shifts in individual item
values, or to incorporate subject covariates. The paired
comparison model is developed to allow for covariate subject
effects at the individual level, and a reparametrization allows
the  inclusion of smooth non-linear effects of continuous
covariates.  The Inglehart index collected in the 1993
International Social Science Programme survey is analysed, and
complex non-linear changes of item values with age, educational
level and religion are identified. The proposed model provides a
powerful tool for social scientists.



 
Per informazioni:
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Elena Stanghellini 
Dipartimento di Scienze Statistiche
Via A. Pascoli - C.P. 1315 Succ. 1
06100 Perugia (Italy)

Tel +39 075 5855229 or 5855242
Fax +39 075 43242

email: stanghel@stat.unipg.it
home page: http://www.stat.unipg.it/DSS/elena.html
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