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Breaking the Floor of the SF-6D Utility Function An Application to Spanish Data

José María Abellán Perpiñán (), Fernando Ignacio Sanchez Martinez, Jorge E. Martínez Pérez () and Ildefonso Méndez Martínez ()
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José María Abellán Perpiñán: University of Murcia
Jorge E. Martínez Pérez: University of Murcia
Ildefonso Méndez Martínez: University of Murcia

Authors registered in the RePEc Author Service: Jose-Maria Abellan-Perpiñan ()

No 20102, Working Papers from Fundacion BBVA / BBVA Foundation

Abstract: This working paper presents a new scoring algorithm for the SF-6D, one of the most popular preference-based health status measures. Previous algorithms suffer from a phenomenon called the floor effect (i.e., lack of sensitivity of the instrument for detecting health gains of individuals whose baseline health is poor). Our algorithm expands the range of utility scores in such a way that the floor effect vanishes. We get this wider range thanks to the use of a lottery equivalent method through which preferences are elicited from a representative sample of the Spanish general population.

Keywords: SF-36; SF-6D; floor effect; standard gamble; lottery equivalent methods (search for similar items in EconPapers)
Pages: 33
Date: 2010-07-01
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