耶鲁儿童食物成瘾量表（YFAS-C）的效度：波斯语版YFAS-C的经典测试理论与项目反应理论
Validity of the Yale Food Addiction Scale for Children (YFAS-C): Classical test theory and item response theory of the Persian YFAS-C.
作者信息
Lin Chung-Ying, Imani Vida, Griffiths Mark D, Pakpour Amir H
机构信息
Department of Rehabilitation Sciences, Hong Kong Polytechnic University, Hung Hom, Hong Kong.
Pediatric Health Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
出版信息
Eat Weight Disord. 2021 Jun;26(5):1457-1466. doi: 10.1007/s40519-020-00956-x. Epub 2020 Jul 16.
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]. 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.
LEVEL OF EVIDENCE
Level V, cross-sectional descriptive study.
目的
探讨耶鲁食物成瘾量表儿童/青少年版（YFAS-C）是否可有效评估伊朗超重青少年。
方法
采用国际标准化方法将YFAS-C翻译成波斯语后，1186名年龄在13至18岁之间的超重/肥胖青少年参与了本研究[666名男性；平均年龄=15.5（标准差=1.9）岁；zBMI=2.5（1.0）kg/m]。所有参与者完成了波斯语版的YFAS-C以及以下量表的波斯语版本：饮食失调检查问卷（EDEQ）、临床损害评估（CIA）、暴饮暴食量表（BES）、饮食态度测试（EAT-26）以及抑郁、焦虑、压力量表（DASS-21）。
结果
在量表层面，验证性因素分析证实了波斯语版YFAS-C的单因素结构。此外，波斯语版YFAS-C在内部一致性（KR20=0.81）、重测信度（组内相关系数=0.83）、区分信度（个体区分信度=0.77；项目区分信度=0.98）和区分指数（个体区分指数=2.04；项目区分指数=8.01）方面具有良好特性。在项目层面，所有项目在因素负荷、校正的项目-总分相关、重测信度以及拟合优度和装备均方方面均具有令人满意的特性。此外，未发现性别（男性与女性）或体重状况（超重与肥胖）方面存在实质性的项目功能差异（DIF）。波斯语版YFAS-C与其他评估饮食症状和一般精神病理学的心理测量量表之间存在显著且中等程度的相关性（r=0.352至0.484）。
结论
波斯语版YFAS-C是一种有效的工具，可帮助医疗保健提供者评估伊朗青少年中的食物成瘾情况。
证据水平
V级，横断面描述性研究。
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