Validade da estrutura fatorial da escala de versão brasileira do Food Choice Questionnaire

Abstract

Resumo Este estudo examinou a estrutura dimensional e a confiabilidade da versão em português brasileiro do Food Choice Questionnaire (FCQ) de 36 itens, instrumento utilizado para medir a importância dos motivos que levam às escolhas alimentares. A amostra incluiu 502 adultos. Utilizou-se análises fatoriais confirmatórias (AFC) para avaliar a estrutura configural (dimensionalidade) e métrica (magnitude de cargas fatoriais, correlações residuais e validade fatorial discriminante). A avaliação de consistência interna usou o coeficiente ômega (Ω); a reprodutibilidade temporal usou o coeficiente Kappa com ponderação quadrática (κ) em uma amostra separada de 41 indivíduos. A AFC final corrobora a estrutura original de 9 fatores e mostra altas cargas fatoriais (λi > 0,80 em 34 itens); duas correlações residuais (r(i2-i3) = 0,773 e r(i16i17) = 0,853); e correlações fatoriais indicando validade fatorial discriminante (φ < 0,80). Quanto à confiabilidade, há adequada consistência interna (Ω = 0,877 a 0,968) e boa reprodutibilidade teste-reteste indicando estabilidade temporal (κ = 0,768 a 0,917). Conclui-se que a versão do FCQ possui boas propriedades configurais e métricas, já podendo ser recomendada para uso no Brasil na sua presente forma.

Factors Underlying Food Choice Motives in a Brazilian Sample: The Association with Socioeconomic Factors and Risk Perceptions about Chronic Diseases

“…These modifications are common and expected in different populations, and are explained by cultural differences, including regionalism, access to food, socioeconomic aspects, and food culture [23,34]. Even though the study conducted by Heitor et al [27] was also carried out in Brazil, our results ended up differing in terms of the resulting FCQ structure. The differences in the regions where the studies were conducted, as well as the heterogeneity of the country, may explain these differences.…”

“…The FCQ was translated into Portuguese and adapted for the Brazilian culture by Heitor et al [26]. This same research group conducted a study with a Brazilian sample aiming to analyze the dimensional structure and reliability of the FCQ [27]. However, no study was conducted in Brazil to explore other factors underlying food choices, such as risk perceptions, for example.…”

An approach on food choice determinants: a study in the restaurants of a public market in Northeastern Brazil

“…To review the determinants of food choice, the Food Choice Questionnaire (FCQ), created by the Englishman Steptoe in 1995 was applied after it was translated, adapted and validated for the Brazilian adult population. With the aim at validating the process, this instrument was first applied to 86 students [14][15][16].…”

“…The central question of the FCQ that the participants had to answer was the level of importance that the food consumed on a daily basis would have. Thus, 36 items were evaluated in this perspective, which were classified by a scoring scale whose degree of importance varied from one to four: one was equivalent to not important, two to slightly important, three to moderately important and four to very important [15,16].…”

“…These items covered dimensions related to food (sensory appeal, natural content, price and familiarity) and to the individual (health, mood, convenience, weight control and ethical concern). The convenience dimension included ease in preparing and accessing food; humor was related to mood and well-being; and ethical concern with the environment [15,16].…”