Korean J Nutr.  2011 Feb;44(1):41-48. 10.4163/kjn.2011.44.1.41.

Statistical Approach to Test Construct Validity and Obtain Weights for the Children's Dietary Life Recognition and Practice Index

• Kwon S
• Kim HY
• Lee JS
• Kwak TK
• Chung HR
• Choi YS
• Kang MH

• KMID: 2268346
• DOI: http://doi.org/10.4163/kjn.2011.44.1.41

Abstract

Constructs with seven latent evaluation indicators and 18 observable survey questions were developed by food and nutrition experts to calculate a food safety recognition and practice index for children. The purpose of this study was to suggest statistical approaches to test construction validity on the constructs, obtain weights of the evaluation indicators, and develop questionnaires to calculate a children's food recognition and practice index. Survey data of 2,400 elementary fifth grade students were used as empirical results. Test validity was evaluated by exploratory factor analysis and confirmed to be highly significant by confirmatory factor analysis [i.e., linear structural relations (LISREL) analysis]. Standardized path coefficients of the LISREL analysis were suggested based on weights, and the weights were compared using the AHP and Delphi methods.

Keyword

constructs; factor analysis; LISREL; test validity; weight

MeSH Terms

Child
Factor Analysis, Statistical
Food Safety
Humans
Hydroxyproline
Surveys and Questionnaires
Weights and Measures
Hydroxyproline

Figure

• 

  Fig. 1 Path coefficients of LISREL analysis. 1) Path coefficient, *: p < 0.05, **: p <0.01. χ2: 32.8, p: 1.0. GFI: 0.98, AGFI: 0.98, RSMR: 0.032

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