目的:本研究评估了耶鲁食物成瘾量表(YFAS2.0)与生态瞬时评估(EMA)的生态效度,并探讨了瞬时食物成瘾量表的内部一致性和收敛效度。
方法:符合暴饮暴食症和/或食物成瘾标准的成年人(N=49)(年龄=34.9±12.1岁;77.1%的顺性女性;55.1%的非西班牙裔白人)完成了在线问卷调查和10天的EMA方案。分析检查了(a)YFAS2.0和EMA测量的变量之间的关联,这些变量对应于食物成瘾标准,(B)瞬时食物成瘾量表(EMA-FA)的可靠性,和(C)EMA-FA和EMA测量的负面影响之间的并发关联,冲动,吃期待,身体满意度,食用可口的食物,和对可口食物的味道反应。
结果:YFAS评分与EMA报告的对应食物成瘾标准的变量相关(ps<.045)。EMA-FA的多级可靠性是足够的(ω=0.75-.94)。EMA-FA得分较高的个人报告的负面影响较大,冲动,食欲,可口的食物消费,对可口食物的味道反应,与预期相反,更高的身体满意度(ps<0.01)。EMA-FA出现了人内效应,预测了更高的负面影响,冲动,食用可口食物的可能性,食用可口食物后更令人愉悦的味道反应,但身体满意度较低,食欲,和吃预期(ps<0.01)。
结论:结果支持YFAS2.0的生态有效性,并且证明了瞬时食物成瘾量表的收敛有效性和内部一致性的其他证据。对YFAS心理测量特性的评估最终将进一步促进其在食物成瘾研究和诊断中的实用性和相关性。(PsycInfo数据库记录(c)2024APA,保留所有权利)。
OBJECTIVE: This study assessed the ecological validity of the Yale Food Addiction Scale (YFAS 2.0) with ecological momentary assessment (EMA) and explored the internal consistency and convergent validity of a momentary food addiction scale.
METHODS: Adults (N = 49) who met criteria for binge-eating disorder and/or food addiction (age = 34.9 ± 12.1 years; 77.1% cisgender female; 55.1% non-Hispanic White) completed online questionnaires and a 10-day EMA protocol. Analyses examined (a) associations between the YFAS 2.0 and EMA-measured variables corresponding to food addiction criteria, (b) reliability of a momentary food addiction scale (EMA-FA), and (c) concurrent associations between EMA-FA and EMA-measured negative affect, impulsivity, eating expectancies, body satisfaction, consumption of palatable food, and taste response to palatable food.
RESULTS: YFAS scores were associated with EMA-reported variables corresponding to food addiction criteria (ps < .045). The multilevel reliability for EMA-FA was adequate (ω = .75-.94). Individuals with higher EMA-FA scores reported greater negative affect, impulsivity, appetite, palatable food consumption, taste response to palatable food, and contrary to expectations, greater body satisfaction (ps < .01). Within-person effects emerged for EMA-FA predicting higher negative affect, impulsivity, likelihood of palatable food consumption, more pleasurable taste responses after consuming palatable foods, yet lower body satisfaction, appetite, and eating expectancies (ps < .01).
CONCLUSIONS: Results support the ecological validity of the YFAS 2.0, and additional evidence of convergent validity and internal consistency was demonstrated for a momentary food addiction scale. This assessment of the psychometric properties of the YFAS will ultimately further its utility and relevance in the study and diagnosis of food addiction. (PsycInfo Database Record (c) 2024 APA, all rights reserved).