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Adaptation and validation of the Spanish version of the DOS questionnaire for the detection of orthorexic nervosa behavior

INTRODUCTION: Orthorexia nervosa, a term used to describe an obsession with healthy eating, has been shown to have major health implications for those affected. The aim of this study was to validate a Spanish version of the Düsseldorfer Ortorexie Skala (DOS), a questionnaire for the detection of ort...

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Autores principales: Parra-Fernández, María Laura, Onieva-Zafra, María Dolores, Fernández-Muñoz, Juan José, Fernández-Martínez, Elia
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6504074/
https://www.ncbi.nlm.nih.gov/pubmed/31063479
http://dx.doi.org/10.1371/journal.pone.0216583
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author Parra-Fernández, María Laura
Onieva-Zafra, María Dolores
Fernández-Muñoz, Juan José
Fernández-Martínez, Elia
author_facet Parra-Fernández, María Laura
Onieva-Zafra, María Dolores
Fernández-Muñoz, Juan José
Fernández-Martínez, Elia
author_sort Parra-Fernández, María Laura
collection PubMed
description INTRODUCTION: Orthorexia nervosa, a term used to describe an obsession with healthy eating, has been shown to have major health implications for those affected. The aim of this study was to validate a Spanish version of the Düsseldorfer Ortorexie Skala (DOS), a questionnaire for the detection of orthorexic behavior. METHODS: A cross-sectional study comprising a total sample of 492 Spanish participants recruited from the University of Castilla-La Mancha, Spain, and randomly divided into two groups. The following tools were applied: the DOS and the Eating Disorder Inventory (EDI-2). The factorial structures were analyzed using exploratory and confirmatory factorial analysis. RESULTS: The internal consistency of the DOS-ES was α = .841. The exploratory factor analysis has revealed the existence of a single factor with factor loadings ranging from .508 to .802. A confirmatory factor analysis was applied to the second half of the random sample in order to confirm the factor solution. CONCLUSION: The Spanish adaptation of the DOS-ES is proven to be a reliable and valid questionnaire for evaluating the obsessive tendency towards healthy eating among university students.
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spelling pubmed-65040742019-05-09 Adaptation and validation of the Spanish version of the DOS questionnaire for the detection of orthorexic nervosa behavior Parra-Fernández, María Laura Onieva-Zafra, María Dolores Fernández-Muñoz, Juan José Fernández-Martínez, Elia PLoS One Research Article INTRODUCTION: Orthorexia nervosa, a term used to describe an obsession with healthy eating, has been shown to have major health implications for those affected. The aim of this study was to validate a Spanish version of the Düsseldorfer Ortorexie Skala (DOS), a questionnaire for the detection of orthorexic behavior. METHODS: A cross-sectional study comprising a total sample of 492 Spanish participants recruited from the University of Castilla-La Mancha, Spain, and randomly divided into two groups. The following tools were applied: the DOS and the Eating Disorder Inventory (EDI-2). The factorial structures were analyzed using exploratory and confirmatory factorial analysis. RESULTS: The internal consistency of the DOS-ES was α = .841. The exploratory factor analysis has revealed the existence of a single factor with factor loadings ranging from .508 to .802. A confirmatory factor analysis was applied to the second half of the random sample in order to confirm the factor solution. CONCLUSION: The Spanish adaptation of the DOS-ES is proven to be a reliable and valid questionnaire for evaluating the obsessive tendency towards healthy eating among university students. Public Library of Science 2019-05-07 /pmc/articles/PMC6504074/ /pubmed/31063479 http://dx.doi.org/10.1371/journal.pone.0216583 Text en © 2019 Parra-Fernández et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Parra-Fernández, María Laura
Onieva-Zafra, María Dolores
Fernández-Muñoz, Juan José
Fernández-Martínez, Elia
Adaptation and validation of the Spanish version of the DOS questionnaire for the detection of orthorexic nervosa behavior
title Adaptation and validation of the Spanish version of the DOS questionnaire for the detection of orthorexic nervosa behavior
title_full Adaptation and validation of the Spanish version of the DOS questionnaire for the detection of orthorexic nervosa behavior
title_fullStr Adaptation and validation of the Spanish version of the DOS questionnaire for the detection of orthorexic nervosa behavior
title_full_unstemmed Adaptation and validation of the Spanish version of the DOS questionnaire for the detection of orthorexic nervosa behavior
title_short Adaptation and validation of the Spanish version of the DOS questionnaire for the detection of orthorexic nervosa behavior
title_sort adaptation and validation of the spanish version of the dos questionnaire for the detection of orthorexic nervosa behavior
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6504074/
https://www.ncbi.nlm.nih.gov/pubmed/31063479
http://dx.doi.org/10.1371/journal.pone.0216583
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