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Development and Validation of the Young Adult Nutrition Literacy Tool
Jade McNamara1, Zachary J Kunicki2, Leigh Neptune1
1School of Food and Agriculture, University of Maine, Orono, ME.
Objective:
To create a tool to measure college students' functional, interactive, and critical nutrition literacy.
Design:
(1) Focus group: item generation, (2) expert review, (3) exploratory factor structure analysis, (4) item refinement and modification, (5) factor structure validation, and (6) criterion validation.
Setting:
Two land-grant college campuses.
Participants:
College students aged between 18 and 24 years.
Main Outcome Measures:
Survey data was used to assess nutrition literacy.
Analysis:
Exploratory factor analysis, confirmatory factor analysis (CFA), item response theory (IRT) analyses, and correlations.
Results:
One-hundred and twenty-three items were generated and tested in an online survey format. Items were eliminated on the basis of face validity, expert feedback, exploratory factor analysis, and CFA/IRT. The 3 measures (functional, interactive, and critical) were analyzed separately. All 3 measures showed reasonable model fit in the CFA/IRT models. Criterion validity showed small to medium effect sizes between measures and fruit/vegetable intake. Reliability estimates met reasonable standards for each measure.
Conclusions And Implications:
The Young Adult Nutrition Literacy Tool is a novel instrument that measures all 3 domains of nutrition literacy. Strengths include a rigorous 6-step development process, reasonable psychometric properties, and a large breadth of items.
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