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Assessment of Social Transmission of Food Preferences Behaviors
Published on: January 25, 2018
[Psychosocial Influence Scale of Fruit and Vegetable Consumption among Adolescents: Adaptation and Factorial
César Henrique de Carvalho Moraes1,2, Marle Dos Santos Alvarenga1, Wanderson Roberto da Silva3,4
1Programa de Pós-Graduação em Nutrição em Saúde Pública, Faculdade de Saúde Pública, Universidade de São Paulo (USP). Av. Dr. Arnaldo 715, Cerqueira César. 01246-904 São Paulo SP Brasil. cesar.moraes@alumni.usp.br.
Abstract:
Instruments to evaluate psychosocial determinants of fruit and vegetable (F&V) consumption among adolescents are scarce, and there appears to be only one instrument - unnamed and unvalidated - that investigates determinants derived from theories of social psychology targeting the frequency of F&V consumption among adolescents. The scope of this paper was to present the process of cultural adaptation and factor validation of this instrument al-lowing its use in studies with Brazilian adolescents. The cross-cultural adaptation process was accomplished and the final version - named Psychosocial Influence Scale for Fruit and Vegetable Consumption among Adolescents (PSI-FAVES) - was tested with 429 students (58% female) using McDonald's omega (ω) reliability and Confirmatory Factor Analysis (CFA) as analytical methods. The final version required refinement and the instrument showed adequate overall reliability (ω=0.86) and good fit of the data to the previously elaborated model (CFI=0.955; TLI=0.951 and RMSEA (90%CI) =0.043 (0.038-0.049)), being the first systematically validated instrument to investigate psychosocial determinants of F&V consumption among adolescents.
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