Development of a Nutrition Quotient (NQ) equation modeling for children and the evaluation of its construct validity.
10.4163/kjn.2012.45.4.390
- Author:
Hye Young KIM
1
;
Sehyug KWON
;
Jung Sug LEE
;
Young Sun CHOI
;
Hae Rang CHUNG
;
Tong Kyung KWAK
;
Juyeon PARK
;
Myung Hee KANG
Author Information
1. Department of Food & Nutrition, Yongin University, Yongin 449-714, Korea.
- Publication Type:Original Article
- Keywords:
nutrition quotient;
children;
construct validity;
dietary behavior
- MeSH:
Checklist;
Child;
Humans;
Logistic Models;
Surveys and Questionnaires;
Weights and Measures
- From:The Korean Journal of Nutrition
2012;45(4):390-399
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
The objective of this study was to develop and evaluate the construct validity of a Nutrition Quotient (NQ) for children. In a previous report (Kang, et al., 2012), the food behavior checklist for children's NQ, consisting of 19 items, was grouped into a 5-factor structure according to the exploratory factor analysis: balance, diversity, moderation, regularity, and practice. In this study, the construct validity of the NQ was assessed using a confirmatory factor analysis. Elementary school students (n = 1,393) from six large cities completed the NQ test. Indicator tests suggested an adequate model fit (goodness of fit index = 0.9613; adjusted GFI = 0.95; standardized root mean square residual = 0.0464; chi-square test statistics of < 0.001 p-value, 82.1), and item loadings were significant for all subscales (p < 0.05). The standardized path coefficients were used as the weights of the items. The NQ and the 5 factor scores of the student were calculated by the obtained weights of the questionnaire items. Logistic regression was applied to find the significant factors in order to affect a specific nutrient status. The receiver operation characteristic curve analyses were performed in order to find diagnostic cut-off points of the five factors. The food behavior checklist for children's NQ would be a handy and suitable instrument for evaluating dietary behaviors of Korean children.
