Developing and validating a scale to measure Food and Nutrition Literacy (FNLIT) in elementary school children in Iran

被引:79
作者
Doustmohammadian, Aazam [1 ,2 ]
Omidvar, Nasrin [1 ,2 ]
Keshavarz-Mohammadi, Nastaran [3 ]
Abdollahi, Morteza [2 ,4 ]
Amini, Maryam [2 ,4 ]
Eini-Zinab, Hassan [1 ,2 ]
机构
[1] Shahid Beheshti Univ Med Sci, Dept Community Nutr, Natl Nutr & Food Technol Res Inst, Tehran, Iran
[2] Shahid Beheshti Univ Med Sci, Fac Nutr Sci & Food Technol, Tehran, Iran
[3] Shahid Beheshti Univ Med Sci, Sch Publ Hlth, Tehran, Iran
[4] Shahid Beheshti Univ Med Sci, Dept Nutr Res, Natl Nutr & Food Technol Res Inst, Tehran, Iran
来源
PLOS ONE | 2017年 / 12卷 / 06期
关键词
HEART HEALTH-PROMOTION; HOME ECONOMICS; DIETARY-INTAKE; FIT INDEXES; ADOLESCENTS; OBESITY; KNOWLEDGE; PROGRAM; TRANSITION; CHALLENGE;
D O I
10.1371/journal.pone.0179196
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Background Food and nutrition literacy is an emerging term which is increasingly used in policy and research. Though research in this area is growing, progression is limited by the lack of an accepted method to measure food and nutrition literacy. The aim of this study is to develop a valid and reliable questionnaire to assess food and nutrition literacy in elementary school children in the city of Tehran. Methods The study was conducted in three phases. To develop Food and Nutrition Literacy (FNLIT) questionnaire, a comprehensive literature review and a qualitative study were initially performed to identify food and nutrition literacy dimensions and its components. Content and face validity of the questionnaire were evaluated by an expert panel as well as students. In the second phase, construct validity of the scale was evaluated using Explanatory Factor Analyses (EFA) and Confirmatory Factor Analyses (CFA). In the last phase (confirmatory phase), the final version of the questionnaire was evaluated on 400 students. Results Findings show Content Validity Ratio (CVR) and Content Validity Index (CVI) of the 62-item questionnaire at acceptable levels of 0.87 and 0.92, respectively. EFA suggested a six-factor construct, namely, understanding food and nutrition information, knowledge, functional, interactive, food choice, and critical. The results of CFA indicated acceptable fit indices for the proposed models. All subscales demonstrated satisfactory internal consistency (Cron-bach's alpha >= 0.70), except for critical skill subscale (0.48). The intraclass correlation coefficient (ICC = 0.90, CI: 0.83-0.94) indicated that Food and Nutrition Literacy (FNLIT) scale had satisfactory stability. Each phase of development progressively improved the questionnaire, which resulted in a 46-item (42 likert-type items and 4 true-false items) Food and Nutrition Literacy (FNLIT) scale. The questionnaire measured two domains with 6 sub-scales, including: 1) cognitive domain: understanding and knowledge; 2) skill domain: functional, food choice, interactive, and critical skills. Conclusion The developed food and nutrition literacy scale is a valid and reliable instrument to measure food and nutrition literacy in children. This measure lays a solid empirical and theoretical foundation for future research and tailored interventions to promote food and nutrition literacy in this age group.
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页数:18
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