Document Detail

Reliability and validity of nutrition knowledge, social-psychological factors, and food label use scales from the 1995 Diet and Health Knowledge Survey.
MedLine Citation:
PMID:  12725714     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To test the reliability and validity of scales on nutrition knowledge, social-psychological factors, and use of food labels developed from the 1995 Diet and Health Knowledge Survey (DHKS) questions. DESIGN: The 1995 DHKS questions within a section were pooled together as a scale and their reliability and validity were examined. PARTICIPANTS: US adults (> or =20 years) in the 1995 DHKS who responded to questions selected for this study (n = 1196). VARIABLES: Nutrition knowledge about the diet-disease relationship and nutrient content of products, perceived barriers and benefits of food labels, perceived ease of understanding food labels, food label use, and importance of healthful eating. ANALYSIS: Scales validity, Cronbach alpha, item total correlation, alpha if the item was deleted, and discriminant, convergence, and correspondence validity. RESULTS: Scales on perceived ease of understanding the food label, benefits of using food labels, food label use, and importance of healthful eating were reliable (Cronbach alpha =.78,.82,.91, and.82, respectively) and valid. CONCLUSION AND IMPLICATIONS: Accurate findings and interpretation of survey data depend on the use of reliable and valid instruments. This study identified the scales in the DHKS that can substantiate the conclusion on which effective nutrition education strategies should be established.
Saori Obayashi; Leonard J Bianchi; Won O Song
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of nutrition education and behavior     Volume:  35     ISSN:  1499-4046     ISO Abbreviation:  J Nutr Educ Behav     Publication Date:    2003 Mar-Apr
Date Detail:
Created Date:  2003-05-02     Completed Date:  2003-07-16     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  101132622     Medline TA:  J Nutr Educ Behav     Country:  Canada    
Other Details:
Languages:  eng     Pagination:  83-91     Citation Subset:  IM    
Department of Food Science and Human Nutrition, Michigan State University, East Lansing, MI 48824-1224, USA.
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MeSH Terms
Diet Surveys*
Discriminant Analysis
Food Habits / psychology*
Food Labeling*
Health Behavior*
Health Knowledge, Attitudes, Practice*
Middle Aged
Nutritional Physiological Phenomena / physiology*
Reproducibility of Results
United States

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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