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Validez estadística de la Escala Mexicana de Seguridad Alimentaria y la Escala Latinoamericana y Caribeña de Seguridad Alimentaria.

Authors :
Villagómez-Ornelas, Paloma
Hernández-López, Pedro
Carrasco-Enríquez, Brenda
Barrios-Sánchez, Karina
Pérez-Escamilla, Rafael
Melgar-Quiñónez, Hugo
Source :
Salud Pública de México. 2014, Vol. 56 Issue Supp 1, pS5-S11. 7p. 1 Black and White Photograph, 2 Charts, 1 Graph.
Publication Year :
2014

Abstract

Objective. This article validates the statistical consistency of two food security scales: the Mexican Food Security Scale (EMSA) and the Latin American and Caribbean Food Security Scale (ELCSA). Materials and methods. Validity tests were conducted in order to verify that both scales were consistent instruments, conformed by independent, properly calibrated and adequately sorted items, arranged in a continuum of severity. The following tests were developed: sorting of items; Cronbach's alpha analysis; parallelism of prevalence curves; Rasch models; sensitivity analysis through mean differences' hypothesis test. Results. The tests showed that both scales meet the required attributes and are robust statistical instruments for food security measurement. Conclusion. This is relevant given that the lack of access to food indicator, included in multidimensional poverty measurement in Mexico, is calculated with EMSA. [ABSTRACT FROM AUTHOR]

Details

Language :
Spanish
ISSN :
00363634
Volume :
56
Issue :
Supp 1
Database :
Academic Search Index
Journal :
Salud Pública de México
Publication Type :
Academic Journal
Accession number :
96928746