疫情背景下在线格式对低收入地区大学生的[具体内容未给出]的信度和效度：一项为期24小时的MESYN研究
Reliability and validity of the in an online format for university students from low-income regions in a pandemic context: A 24 hour MESYN study.
作者信息
de Carvalho Millena Vaz, Cardoso Antonio Gibran de Almeida, Feuerstein Shirley Cunha, de Sousa Rosana Rodrigues, Collese Tatiana Sadalla, Torres-Leal Francisco Leonardo, Nascimento-Ferreira Marcus Vinicius, De Moraes Augusto Cesar Ferreira
机构信息
Health, Physical Activity and Behavior Research (HEALTHY-BRA) Group, Universidade Federal do Tocantins, Miracema do Tocantins, Brazil.
Instituto de Ensino Superior do Sul do Maranhão (IESMA/UNISULMA), Imperatriz, Brazil.
出版信息
Front Epidemiol. 2023 Jan 11;2:1036631. doi: 10.3389/fepid.2022.1036631. eCollection 2022.
OBJECTIVE
To test the reliability and validity of the (DEBQ) in an online format in university students from low-income regions.
METHODS
We applied the questionnaire to a sample of 195 and 117 university students from a low-income region (Gini index of 0.56) to study validity and reliability, respectively. The DEBQ consists of 33 items on eating behavior in three dimensions/factors: emotional eating, restrained eating and external eating. The questionnaire was administered twice at 2-week intervals. We tested the reliability temporal stability and internal consistency and construct validity exploratory and confirmatory factor analysis.
RESULTS
For reliability, we identified an acceptable Spearman correlation coefficient (rho > 0.30 and < 0.05) and Cronbach's alpha ( ≥ 0.70) for all DEBQ items. In the exploratory analysis, we identified 6 factors representing a mix of original and additional factors, with an explained variance of 69.1%. In the confirmatory analysis with structural equation modeling, we observed better global model adjustment for the 6-factor model with the Tucker-Lewis index and comparative fit index closer to one, as well as root mean square error of approximation closer to zero than the original (3-factor) model. Using generalized structural equation modeling, we also observed a better fit in latent class modeling for the 6-factor model (AIC: 16990.67; BIC. 17874.38) than for the 3-factor model (AIC: 17904.09; BIC: 18342.67).
CONCLUSION
The online format of the DEBQ has acceptable reliability and validity for measuring eating behavior in university students from low-income regions.
目的
测试在线形式的《饮食态度问卷》（DEBQ）在低收入地区大学生中的信效度。
方法
我们分别对来自低收入地区（基尼系数为0.56）的195名和117名大学生样本应用该问卷，以研究效度和信度。DEBQ由33个关于饮食行为的项目组成，分为三个维度/因子：情绪性进食、克制性进食和外部性进食。问卷每隔2周发放两次。我们通过探索性和验证性因素分析测试了信度（时间稳定性和内部一致性）和结构效度。
结果
就信度而言，我们发现所有DEBQ项目的斯皮尔曼相关系数（rho>0.30且<0.05）和克朗巴哈系数（≥0.70）均可接受。在探索性分析中，我们识别出6个因子，代表了原始因子和附加因子的混合，解释方差为69.1%。在使用结构方程模型的验证性分析中，我们观察到与原始（3因子）模型相比，6因子模型的塔克-刘易斯指数和比较拟合指数更接近1，近似误差均方根更接近0，全局模型拟合更好。使用广义结构方程模型，我们还观察到6因子模型在潜在类别建模中的拟合度（AIC：16990.67；BIC：17874.38）优于3因子模型（AIC：17904.09；BIC：18342.67）。
结论
DEBQ的在线形式在测量低收入地区大学生的饮食行为方面具有可接受的信效度。
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