PDF(Pubmed)
Abstract：
BACKGROUND: A healthy diet is a critical factor in maintaining long-term health. In addition to a health-promoting food environment, the nutrition health literacy (NHL) and food literacy (FL) of the population are important in this context. This paper describes the development and validation of two short instruments to measure the nutrition literacy of the population, used in the Austrian Nutrition Literacy Survey 2021.
METHODS: An instrument to measure NHL (Nutrition Health Literacy Scale; NHLS) has been adapted and further developed. To measure FL, the Self-perceived Food Literacy Scale by Poelman et al. has been modified and shortened (SPFL-SF). Validation of the instruments was based on data from a web survey conducted in Austria in 2021 with almost 3,000 participants aged 18 years and older. Exploratory and confirmatory factor analyses were performed to assess the factorial validity/dimensionality of the instruments. Additionally, internal consistency was assessed using Cronbach\'s alpha, ordinal alpha, and McDonald\'s omega.
RESULTS: Both instruments demonstrate excellent data-model fit. The NHLS also shows excellent internal consistency (α = 0.91), while the SPFL-SF displays a sufficient internal consistency for all (α between 0.70 and 0.89) but one sub-dimension (resisting temptation α = 0.61). Furthermore, the distribution of the items indicates that the measures are understandable and suitable, as evidenced by the absence of missing values in the sample. In addition, the items of both instruments differ in their level of difficulty or agreement.
CONCLUSIONS: The NHLS and SPFL-SF are reliable and valid instruments for measuring NHL and FL in the general adult population. The brief instruments measuring the different aspects of nutrition literacy can be easily used in nutritional or evaluation studies. Further work is required to investigate other aspects of validity.
METHODS: An instrument to measure NHL (Nutrition Health Literacy Scale; NHLS) has been adapted and further developed. To measure FL, the Self-perceived Food Literacy Scale by Poelman et al. has been modified and shortened (SPFL-SF). Validation of the instruments was based on data from a web survey conducted in Austria in 2021 with almost 3,000 participants aged 18 years and older. Exploratory and confirmatory factor analyses were performed to assess the factorial validity/dimensionality of the instruments. Additionally, internal consistency was assessed using Cronbach\'s alpha, ordinal alpha, and McDonald\'s omega.
RESULTS: Both instruments demonstrate excellent data-model fit. The NHLS also shows excellent internal consistency (α = 0.91), while the SPFL-SF displays a sufficient internal consistency for all (α between 0.70 and 0.89) but one sub-dimension (resisting temptation α = 0.61). Furthermore, the distribution of the items indicates that the measures are understandable and suitable, as evidenced by the absence of missing values in the sample. In addition, the items of both instruments differ in their level of difficulty or agreement.
CONCLUSIONS: The NHLS and SPFL-SF are reliable and valid instruments for measuring NHL and FL in the general adult population. The brief instruments measuring the different aspects of nutrition literacy can be easily used in nutritional or evaluation studies. Further work is required to investigate other aspects of validity.
摘要：
背景：健康的饮食是维持长期健康的关键因素。除了促进健康的食物环境，在这种情况下，人口的营养健康素养（NHL）和食物素养（FL）很重要。本文介绍了两种用于测量人口营养素养的简短仪器的开发和验证，用于2021年奥地利营养素养调查。
方法：一种测量NHL（营养健康素养量表；NHLS）的工具已被修改并进一步开发。要测量FL，Poelman等人的自我感知食物素养量表。已被修改和缩短(SPFL-SF)。仪器的验证是基于2021年在奥地利进行的一项网络调查的数据，该调查涉及近3,000名18岁及以上的参与者。进行了探索性和验证性因素分析，以评估仪器的因子效度/维度。此外,内部一致性使用Cronbachα进行评估，序数阿尔法，和麦当劳的欧米茄。
结果：两种仪器都显示出良好的数据模型拟合。NHLS还显示出优异的内部一致性（α=0.91），而SPFL-SF显示出足够的内部一致性（α在0.70和0.89之间），但只有一个子维度（抵抗诱惑α=0.61）。此外，项目的分布表明这些措施是可以理解和适当的，如样品中不存在缺失值所证明的。此外,两种文书的项目在难度或一致性方面有所不同。
结论：NHLS和SPFL-SF是测量一般成年人群NHL和FL的可靠和有效的仪器。测量营养素养不同方面的简短工具可以很容易地用于营养或评估研究。需要进一步的工作来调查有效性的其他方面。
方法：一种测量NHL（营养健康素养量表；NHLS）的工具已被修改并进一步开发。要测量FL，Poelman等人的自我感知食物素养量表。已被修改和缩短(SPFL-SF)。仪器的验证是基于2021年在奥地利进行的一项网络调查的数据，该调查涉及近3,000名18岁及以上的参与者。进行了探索性和验证性因素分析，以评估仪器的因子效度/维度。此外,内部一致性使用Cronbachα进行评估，序数阿尔法，和麦当劳的欧米茄。
结果：两种仪器都显示出良好的数据模型拟合。NHLS还显示出优异的内部一致性（α=0.91），而SPFL-SF显示出足够的内部一致性（α在0.70和0.89之间），但只有一个子维度（抵抗诱惑α=0.61）。此外，项目的分布表明这些措施是可以理解和适当的，如样品中不存在缺失值所证明的。此外,两种文书的项目在难度或一致性方面有所不同。
结论：NHLS和SPFL-SF是测量一般成年人群NHL和FL的可靠和有效的仪器。测量营养素养不同方面的简短工具可以很容易地用于营养或评估研究。需要进一步的工作来调查有效性的其他方面。
