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| Title: | Validity of the yale food addiction scale for children (YFAS-C) : classical test theory and item response theory of the persian YFAS-C | Authors: | Lin, CY Imani, V Griffiths, MD Pakpour, AH |
Issue Date: | 2020 | Source: | Eating and weight disorders, 2020, p. 1-10 | Abstract: | Purpose To examine whether the child/adolescent version of the Yale Food Addiction Scale (YFAS-C) is valid to assess the Iranian adolescents who are overweight. Methods After using an internationally standardized method to translate the YFAS-C into Persian, 1186 overweight/obese adolescents aged between 13 and 18 years participated in the present study [666 males; mean age = 15.5 (SD = 1.9) years; zBMI = 2.5 (1.0) kg/m(2)]. All the participants completed the Persian YFAS-C alongside Persian versions of the following scales: Eating Disorder Examination Questionnaire (EDEQ), Clinical Impairment Assessment (CIA), Binge Eating Scale (BES), Eating Attitudes Test (EAT-26), and Depression, Anxiety, Stress Scale (DASS-21). Results At the scale level, confirmatory factor analysis verified the single-factor structure of the Persian YFAS-C. Additionally, the Persian YFAS-C had promising properties regarding internal consistency (KR20 = 0.81), test-retest reliability (intraclass correlation coefficient = 0.83), separation reliability (person separation reliability = 0.77; item separation reliability = 0.98), and separation index (person separation index = 2.04; item separation index = 8.01). At the item level, all items had satisfactory properties in factor loadings, corrected item-total correlation, test-retest reliability, and infit and outfit mean square. Moreover, no substantial differential item functioning (DIF) was found concerning gender (male vs. female) or weight status (overweight vs. obesity). Significant and moderate correlations were found between the Persian YFAS-C and other psychometric scales assessing eating symptomatology and general psychopathology (r = 0.352 to 0.484). Conclusion The Persian YFAS-C is a valid instrument that assists healthcare providers in assessing food addiction among Iranian adolescents. |
Keywords: | Adolescence Eating behavior Eating disorders Food addiction Obesity |
Publisher: | Springer | Journal: | Eating and weight disorders | ISSN: | 1124-4909 | EISSN: | 1590-1262 | DOI: | 10.1007/s40519-020-00956-x | Rights: | © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The following publication Lin, C. Y., Imani, V., Griffiths, M. D., & Pakpour, A. H. (2020). Validity of the yale food addiction scale for children (YFAS-C): Classical test theory and item response theory of the persian YFAS-C. Eating and Weight Disorders, 1-10 is available at https://dx.doi.org/10.1007/s40519-020-00956-x |
| Appears in Collections: | Journal/Magazine Article |
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