Quasi-variances and extensions

Firth, D. (2011) Quasi-variances and extensions. In: 26th International Workshop on Statistical Modelling, 11 - 15 July 2011, Valencia, Spain. (Unpublished)


Official URL: http://www.geeitema.org/iwsm2011/


The notion of quasi-variances, as a device for both simplifying and enhancing the presentation of categorical-predictor e�ects in statistical models, was developed in Firth and de Menezes (Biometrika, 2004, 65{80). The approach generalizes the earlier ideas of Ridout (GLIM Proceedings, 1989) and of Easton, Peto and Babiker (Statistics in Medicine, 1991 | ` oating absolute risk', which has become rather controversial in epidemiology). In this talk I will outline and exemplify the method to show how it can be useful, and discuss its extension to some other contexts such as parameters that may be arbitrarily scaled and/or rotated.

Item Type:Conference or Workshop Item (Other)
Subjects:5. Quantitative Data Handling and Data Analysis > 5.17 Quantitative Approaches (other)
ID Code:2192
Deposited By: L-W-S user
Deposited On:20 Feb 2012 15:31
Last Modified:20 Feb 2012 15:31

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