Reproducibility of a questionnaire on psychosocial aspects related to the consumption of fruits and vegetables in adolescents.

Objective: To perform cross-cultural adaptation and assess the reproducibility of a questionnaire on psychosocial aspects associated with fruit and vegetable consumption in adolescents. Methods: This is a test-retest study, carried out in 2015, with 92 adolescent students from a public school in Niteroi, Rio de Janeiro (Brazil). A cross-cultural adaptation of the questions related to the consumption of fruits and vegetables of the Costa Rican questionnaire "Psychosocial Aspects Associated with Nutrition and Activity Physics of Adolescents" which had five dimensions, distributed in 46 questions to evaluated the influence of self-efficacy, family, peers, body image, and media/environment on consumption. Reproducibility was assessed by comparing data obtained from two applications of the instrument. Kappa statistics and the intraclass correlation coefficient (ICC) were used. Results: The analyses showed that for 60% of the questions, the kappa value was statistically significant (p<0.05) and ranged between 0.21 and 0.52, indicating reasonable or moderate agreement. The psychosocial aspects that showed greater agreement were self-efficacy (ICC 0.75), family (ICC 0.59), body image (ICC 0.47), and peers (ICC 0.30). Conclusion: The questionnaire has good reproducibility and allows the assessment of specific psychosocial aspects related to fruit and vegetable consumption in adolescents. The tested questionnaire offers important support for the development and application of programs and actions aimed at promoting healthy eating among adolescents. [ABSTRACT FROM AUTHOR]