Validation of the Korean version of the Düsseldorf Orthorexia Scale(K-DOS)

& (2023). Validation of the Korean version of the Düsseldorf Orthorexia Scale(K-DOS). The Korean Journal of Health Psychology, 28(2), 561-579, https://doi.org/10.17315/kjhp.2023.28.2.015

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Abstract

In this study, the Düsseldorf Orthorexia Scale(DOS), a tool for screening orthorexia nervosa, was validated according to the domestic situation. A questionnaire was administered to 535 adults who were in their 20s and 40s and were not currently dieting due to chronic diseases or specific food allergies. The scale was translated into Korean with the consent of the author, and then, an exploratory factor analysis (n=300) and a confirmatory factor analysis (n=235) were performed to examine the factor structure and model fit. As a result of the factor analysis, two sub-factors of ‘daily life problems caused by healthy nutrition preoccupation’ and ‘concern of healthy nutrition' were derived, and the fit of the two-factor model was good. In addition, convergence and discriminatory validity were verified through correlation analysis using the dysfunctional Eating Attitude Test(EAT-26), the Obsessive Compulsive Inventory(OCI-R), and the illness attitude test(IAS), which are measures that assess the related construct. Reliability was ensured as the internal consistency of all items in K-DOS and the internal consistency of subscales as well as split-half reliability were good. Finally, the significance and limitations of this study were investigated, and further studies were suggested.

keywords: orthorexia nervosa, orthorexia, K-DOS, Düsseldorf Orthorexia Scale

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Article Contents

Vol.28 No.2

Validation of the Korean version of the Düsseldorf Orthorexia Scale(K-DOS)

Abstract

The Korean Journal of Health Psychology