Khorramrouz Fatemeh, Doustmohammadian Azam, Amini Maryam, Pourhosein Sarivi Somayeh, Khadem-Rezaiyan Majid, Shadmand Foumani Moghadam Mohammad Reza, Khosravi Maryam
Student Research Committee, Department of Nutrition, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
Gastrointestinal and Liver Diseases Research Center, Iran University of Medical Sciences, Tehran, Iran.
Br J Nutr. 2022 May 28;127(10):1588-1597. doi: 10.1017/S0007114521001586. Epub 2021 May 14.
The present study aimed to assess the relative validity and reliability of a modified Food and Nutrition Literacy (M-FNLIT) questionnaire in primary school children in the city of Mashhad. The study was conducted in four phases. In the first step, the content and face validity of the questionnaire were evaluated by Delphi consensus as well as interviewing the students. Then, construct validity was examined using Confirmatory Factor Analysis (CFA). The internal consistency and reliability of the questionnaire were also assessed using Cronbach α and Intraclass Correlation Coefficient (ICC), respectively. Finally, a receiver operating characteristic analysis was performed to detect the cut-off scores of the M-FNLIT scale. Findings of two rounds of Delphi showed satisfactory levels of Content Validity Ratio: 0·72 and 0·92, Content Validity Index (CVI): 0·92 and 0·98, respectively. The results of CFA for domains and subscales of the M-FNLIT questionnaire including cognitive domain (understanding food and nutrition information and nutritional health knowledge) and skill domain (functional, food choice, interactive, and critical skills) indicated acceptable fit indices. M-FNLIT subscale-specific Cronbach α values ranged between 0·68 and 0·8 and ICC was 0·95 (95 % CI 0·93, 96). The final questionnaire included forty items (thirty-six Likert-type and four true-false items). FNLIT scores were categorized as low (≤ 58), medium (> 58–< 81), and high (≥ 81). The M-FNLIT questionnaire has a good level of validity and reliability to measure food and nutrition literacy in primary school children. The questionnaire can be applied in the evaluation of nutritional interventions in this age group.
本研究旨在评估改良版食品与营养素养（M - FNLIT）问卷在马什哈德市小学生中的相对效度和信度。该研究分四个阶段进行。第一步，通过德尔菲共识法以及对学生进行访谈来评估问卷的内容效度和表面效度。然后，使用验证性因子分析（CFA）来检验结构效度。还分别使用克朗巴哈α系数和组内相关系数（ICC）评估问卷的内部一致性和信度。最后，进行接受者操作特征分析以检测M - FNLIT量表的临界分数。两轮德尔菲法的结果显示内容效度比分别为0·72和0·92，内容效度指数（CVI）分别为0·92和0·98，均达到令人满意的水平。M - FNLIT问卷各领域和子量表的CFA结果，包括认知领域（理解食品与营养信息及营养健康知识）和技能领域（功能、食物选择、互动和批判性技能），表明拟合指数可接受。M - FNLIT子量表特定的克朗巴哈α值在0·68至0·8之间，ICC为0·95（95%可信区间0·93，0·96）。最终问卷包括40个项目（36个李克特式项目和4个是非题项目）。FNLIT分数分为低（≤58）、中（>58 - <81）和高（≥81）三个等级。M - FNLIT问卷在测量小学生食品与营养素养方面具有良好的效度和信度水平。该问卷可应用于评估该年龄组的营养干预措施。
