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Revision and Psychometric Validation of a Survey Tool to Measure Critical Nutrition Literacy in Young Adults.
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- Author(s): McNamara, Jade; Kunicki, Zachary J.; Olfert, Melissa D.; Byrd-Bredbenner, Carol; Greene, Geoffrey
- Source:
Journal of Nutrition Education & Behavior. Jul2020, Vol. 52 Issue 7, p726-731. 6p. - Source:
- Additional Information
- Subject Terms: CHI-squared test; COLLEGE students; STATISTICAL correlation; FACTOR analysis; FOOD habits; RESEARCH methodology; NUTRITION; PSYCHOMETRICS; QUESTIONNAIRES; RESEARCH; RESEARCH evaluation; STATISTICAL sampling; SCALE analysis (Psychology); CROSS-sectional method; HEALTH literacy; RESEARCH methodology evaluation; DATA analysis software; DESCRIPTIVE statistics; ADULTS
- Abstract: To refine and psychometrically validate the Revised Critical Nutrition Literacy Tool in a young adult sample. Young adults recruited from 3 universities completed the 11-item Critical Nutrition Literacy Tool claims scale. Exploratory factor analysis, confirmatory factor analysis (CFA), and item response theory were used to validate the Critical Nutrition Literacy Tool. Omega and Cronbach α assessed reliability. A total of 1,718 participants completed the survey. Results from exploratory factor analysis and CFA analyses suggested that a 2-factor, 7-item instrument showed a reasonable fit to the data based on the comparative fit index and standardized root mean residual values, χ2(13) =161.64, P <.001, comparative fit index = 0.90, root mean square error of approximation = 0.11, standardized root mean residual = 0.07. All items loaded well onto the factors from the CFA and item response theory perspectives. The full measure and both factors showed questionable (>0.60) or acceptable (>0.70) internal consistency. A revised 2-factor instrument capturing (factor 1) critical appraisal of media and (factor 2) evidence-based sources of nutrition information demonstrated sound psychometric characteristics. Further item testing is necessary for different populations, and item development is warranted to capture Internet/social media sources and the relationship among critical nutrition literacy, dietary behaviors, and health outcomes. [ABSTRACT FROM AUTHOR]
- Abstract: Copyright of Journal of Nutrition Education & Behavior is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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