Anna Cecília Queiroz de Medeiros1,2, Maria Emilia Yamamoto3, Lucia Fatima Campos Pedrosa4, Claudio Simon Hutz5. 1. Laboratory of Evolution of the Human Behavior, Graduate Program in Psychobiology, Department of Physiology, Federal University of Rio Grande do Norte, Natal, Brazil. annacqm@yahoo.com.br. 2. Health Sciences College of Trairi/FACISA, Federal University of Rio Grande do Norte, Rua Vila Trairi, s/n, Centro, Santa Cruz, Rio Grande do Norte, 59200-000, Brazil. annacqm@yahoo.com.br. 3. Laboratory of Evolution of the Human Behavior, Graduate Program in Psychobiology, Department of Physiology, Federal University of Rio Grande do Norte, Natal, Brazil. 4. Department of Nutrition, Federal University of Rio Grande do Norte, Natal, Brazil. 5. Department of Psychology, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.
Abstract
PURPOSE: This study aimed to evaluate the psychometric properties and scoring pattern of the Brazilian version of the three-factor eating questionnaire-r21 (TFEQ-R21). METHODS: Data were collected from 410 undergraduate students. Confirmatory factor analysis was conducted to examine the factor structure of the TFEQ-R21. Convergent and discriminant validity also was assessed. Cluster analysis was performed to investigate scoring patterns. RESULTS: In assessing the quality setting, the model was considered satisfactory (χ 2/gl = 2.24, CFI = 0.97, TLI = 0.96, RMSEA = 0.05). The instrument was also considered appropriate in relation to the discriminant and convergent validity. There was a positive correlation between body mass index and the dimensions of cognitive restraint (r s = 0.449, p < 0.001) and emotional eating (r s = 0.112, p = 0.023). Using cluster analysis three respondent profiles were identified. The profile "A" was associated with appropriate weight, the "B" was characterized by high scores in cognitive restraint dimension, and the cluster "C" focused individuals who had higher scores on the uncontrolled eating and emotional eating dimensions. CONCLUSIONS: The Brazilian version of TFEQ-R21 has adequate psychometric properties, and the identified response profiles offer a promising prospect for its use in clinical practice, in weight loss interventions.
PURPOSE: This study aimed to evaluate the psychometric properties and scoring pattern of the Brazilian version of the three-factor eating questionnaire-r21 (TFEQ-R21). METHODS: Data were collected from 410 undergraduate students. Confirmatory factor analysis was conducted to examine the factor structure of the TFEQ-R21. Convergent and discriminant validity also was assessed. Cluster analysis was performed to investigate scoring patterns. RESULTS: In assessing the quality setting, the model was considered satisfactory (χ 2/gl = 2.24, CFI = 0.97, TLI = 0.96, RMSEA = 0.05). The instrument was also considered appropriate in relation to the discriminant and convergent validity. There was a positive correlation between body mass index and the dimensions of cognitive restraint (r s = 0.449, p < 0.001) and emotional eating (r s = 0.112, p = 0.023). Using cluster analysis three respondent profiles were identified. The profile "A" was associated with appropriate weight, the "B" was characterized by high scores in cognitive restraint dimension, and the cluster "C" focused individuals who had higher scores on the uncontrolled eating and emotional eating dimensions. CONCLUSIONS: The Brazilian version of TFEQ-R21 has adequate psychometric properties, and the identified response profiles offer a promising prospect for its use in clinical practice, in weight loss interventions.
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