0576/2016 - Instrumento para avaliar a combinação de alimentos para tornar o ferro mais biodisponível na dieta infantil Instrument to assess the knowledge about the combination of foods to make iron more bioavailable in children‘s diet
• Haydée Serrão Lanzillotti - Lanzillotti, Haydée Serrão - Rio de Janeiro, Rio de Janeiro - Universidade do Estado do Rio de Janeiro (UERJ) / Instituto de Nutrição (IN), Nutrição Social - <haydeelan@gmail.com> +
Coautor(es):
• Maria Elisa Barros - Barros, Maria Elisa - Universidade do Estado do Rio de Janeiro (UERJ) / Instituto de Nutrição (IN), Nutrição Social - <melisavilela@gmail.com>
• Fernanda da Motta Afonso - Afonso, Fernanda da Motta - Universidade do Estado do Rio de Janeiro, Nutrição Social - <fmafonso@gmail.com>
• Roseane Barbosa - Barbosa, Roseane - Universidade Federal Fluminense - <roseanesampaio@ig.com.br>
Área Temática:
Alimentação, Nutrição e Saúde
Resumo:
O objetivo foi desenvolver um instrumento para avaliar o conhecimento de mulheres adultas sobre a combinação de alimentos de forma a tornar o ferro biodisponível na dieta infantil. Estudo fatorial exploratório de questionário (escala Likert) utilizando-se Análise de Fator Principal e estimador de razão de verossimilhança. Aplicaram-se teste KMO, teste Doornik-Hansen, critério de Kaiser Guttman, correlação entre fatores e pressupostos teóricos. Confiabilidade avaliada pelo Alfa de Cronbach e confiabilidade composta. Participaram do estudo 151 mulheres. KMO total (0,5942) mostrou adequação da amostra. Teste Doornik-Hansen atestou normalidade multivariada dos escores observados. Cargas fatoriais, variância do erro dos itens e correlação entre os fatores apontaram para a bidimensionalidade do questionário, que passou de 30 para 15 itens. Alfa de Cronbach total de 0,8018 (95% IC= 0,7429 a 0,8606) e confiabilidade composta (Fator 1= 0,3125 e Fator 2= 0,3263). Validade fatorial convergente e discriminante apresentaram resultados aceitáveis. Concluiu-se por redução de instrumento validado (30 para 15 itens) com confiabilidade e validade que o habilita para posterior procedimento de análise fatorial confirmatória.
The objective was to develop an instrument to evaluate the knowledge which adult women have of food combinations in order to make iron bioavailable in the children`s diet. We conducted an exploratory factor analysis study (Likert scale) on a questionnaire in a sample comprising 151 women and used the Principal Factor Analysis and an estimator of likelihood ratio. We applied the Kaiser-Meyer-Olkin (KMO) test, the Doornik-Hansen test, the Kaiser Guttman criterion, the correlation between factors and theoretical assumptions. Reliability was assessed by Cronbach’s alpha and composite reliability. Total KMO (0.5942) showed adequacy of the sample. The Doornik-Hansen test showed multivariate normality of the scores observed. Factorial loads, error variance of items and correlation between factors pointed to the two-dimensional nature of the questionnaire, which decreased from 30 to 15 items. Total Cronbach’s alpha was 0.8018 (95% CI = 0.7429 to 0.8606) and composite reliability (Factor 1 = 0.3125 and Factor 2 = 0.3263). Convergent and discriminant factorial validity and were acceptable. We concluded in favor of a reduction in the instrument (from 30 to 15 items) with reliability and validity that enable it for a further procedure of a confirmatory factor analysis.
Instrument to assess the knowledge about the combination of foods to make iron more bioavailable in children‘s diet
Resumo (abstract):
The objective was to develop an instrument to evaluate the knowledge which adult women have of food combinations in order to make iron bioavailable in the children`s diet. We conducted an exploratory factor analysis study (Likert scale) on a questionnaire in a sample comprising 151 women and used the Principal Factor Analysis and an estimator of likelihood ratio. We applied the Kaiser-Meyer-Olkin (KMO) test, the Doornik-Hansen test, the Kaiser Guttman criterion, the correlation between factors and theoretical assumptions. Reliability was assessed by Cronbach’s alpha and composite reliability. Total KMO (0.5942) showed adequacy of the sample. The Doornik-Hansen test showed multivariate normality of the scores observed. Factorial loads, error variance of items and correlation between factors pointed to the two-dimensional nature of the questionnaire, which decreased from 30 to 15 items. Total Cronbach’s alpha was 0.8018 (95% CI = 0.7429 to 0.8606) and composite reliability (Factor 1 = 0.3125 and Factor 2 = 0.3263). Convergent and discriminant factorial validity and were acceptable. We concluded in favor of a reduction in the instrument (from 30 to 15 items) with reliability and validity that enable it for a further procedure of a confirmatory factor analysis.
Lanzillotti, Haydée Serrão, Barros, Maria Elisa, Afonso, Fernanda da Motta, Barbosa, Roseane. Instrumento para avaliar a combinação de alimentos para tornar o ferro mais biodisponível na dieta infantil. Cien Saude Colet [periódico na internet] (2016/dez). [Citado em 23/12/2024].
Está disponível em: http://cienciaesaudecoletiva.com.br/artigos/instrumento-para-avaliar-a-combinacao-de-alimentos-para-tornar-o-ferro-mais-biodisponivel-na-dieta-infantil/16002?id=16002
