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Household Nutrition Security Scale (HNSS): Further Establishing Validity and Reliability in a Statewide Sample in
Eric E Calloway1, Amy L Yaroch1, Cara F Ruggerio2
1Center for Nutrition and Health Impact, Omaha, NE, United States.
The Journal of Nutrition
|July 23, 2025
Summary
The Household Nutrition Security Scale (HNSS) is a valid and reliable tool for assessing nutrition security in diverse US households. This study confirmed its construct validity and reliability through confirmatory factor analysis (CFA) and differential item functioning (DIF) analyses.
Area of Science:
- Nutrition Security Assessment
- Survey Methodology
- Psychometrics
Background:
- The Household Nutrition Security Scale (HNSS) is an early US measure of nutrition security.
- Original validation lacked confirmatory factor analysis (CFA) and differential item functioning (DIF) analyses.
Purpose of the Study:
- To conduct CFA and DIF analyses on the HNSS.
- To validate the HNSS in a new, statewide sample in Massachusetts.
Main Methods:
- A cross-sectional, representative survey of 2903 Massachusetts adults was conducted.
- Confirmatory factor analysis (CFA) and differential item functioning (DIF) were performed.
- Model fit, internal consistency (Cronbach's alpha), and DIF across demographic groups were assessed.
Main Results:
- CFA model fit metrics indicated adequate model fit.
- Cronbach's alpha was 0.923, demonstrating high internal consistency.
- No DIF was detected across various demographic groups.
Conclusions:
- Findings support the construct validity and reliability of the HNSS.
- The HNSS is suitable for research and program evaluation in diverse household samples.
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