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Progressing the development of a food literacy questionnaire using cognitive interviews.
Courtney Thompson1, Jean Adams2, Helen Anna Vidgen1
1Queensland University of Technology (QUT), Faculty of Health, School of Exercise and Nutrition Sciences, Victoria Park Road, Kelvin Grove, QLD4059, Australia.
Public Health Nutrition
|November 8, 2021
Summary
Researchers refined a food literacy item pool by assessing existing items and conducting cognitive interviews. The study identified gaps in understanding everyday food literacy practices, leading to a more comprehensive questionnaire.
Area of Science:
- Nutrition Science
- Health Behavior Research
- Psychometrics
Background:
- Food literacy, encompassing knowledge, skills, and behaviors for food needs and intake, is crucial for dietary health.
- Existing measures of food literacy often fail to capture the full scope of eating practices.
- A comprehensive and validated tool is needed to accurately assess food literacy.
Purpose of the Study:
- To develop an item pool for a comprehensive food literacy questionnaire.
- To identify items for inclusion and exclusion based on cognitive interviews.
- To understand the general public's interpretation of everyday food literacy.
Main Methods:
- Cognitive interviews using think-aloud and verbal probing were conducted with Australian residents.
- An initial item pool from previous studies was analyzed for applicability, clarity, and logic.
- Thematic analysis was used to identify emergent themes and develop new items.
Main Results:
- Of the initial 116 items, 29 were deleted, 31 retained, and 56 revised after analysis.
- Thematic analysis revealed a narrow interpretation of food literacy, focusing on conventional practices.
- Eighty-four new items were developed to cover a broader range of eating situations, resulting in a 171-item pool.
Conclusions:
- The study successfully progressed the development of a comprehensive food literacy questionnaire.
- The refined item pool addresses limitations of previous measures and captures a wider range of food literacy practices.
- Further validation is needed to establish a robust food literacy assessment tool.
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