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Engaging Experts and Patients to Refine the Nutrition Literacy Assessment Instrument
Heather D Gibbs1, Susan Harvey2, Sarah Owens1
1Department of Dietetics & Nutrition, University of Kansas Medical Center, Kansas City, KS, United States.
BMC Nutrition
|September 12, 2017
Summary
A new nutrition literacy tool (NLit) was revised with expert and patient input for primary care. The validated instrument is ready for further testing in adult primary care settings.
Area of Science:
- Nutrition Science
- Health Literacy Research
- Instrument Development
Background:
- Objective nutrition literacy measures are lacking for primary care.
- The Nutrition Literacy Assessment (NLit) instrument previously piloted in specific populations.
- Need for NLit revision for adult primary care use.
Purpose of the Study:
- Engage nutrition experts and patients to guide NLit revisions.
- Adapt the NLit for the adult primary care population.
- Enhance the NLit's relevance, clarity, and readability.
Main Methods:
- Expert review of NLit items for relevance, clarity, and reading difficulty.
- Calculation of Scale Content Validity Index (SCVI) based on expert rankings.
- Cognitive interviews with primary care patients to assess NLit clarity and understanding.
Main Results:
- Expert review confirmed content validity with SCVI of 0.90.
- Cognitive interviews identified themes leading to improved NLit clarity.
- Revisions enhanced the instrument's suitability for the target audience.
Conclusions:
- The revised NLit effectively measures intended nutrition literacy constructs.
- The NLit is understood by the primary care patient population.
- The NLit is prepared for subsequent validity and reliability testing in primary care.
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