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Publication
Adaptation, confirmatory factor analysis, and psychometric properties of the Brazilian version of the Repetitive Eating Questionnaire
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Advisor(s)
Abstract(s)
Objective: The Repetitive Eating Questionnaire (Rep(eat)-Q) is a brief self-report
measure developed to assess grazing behavior—an understudied problematic eating
behavior associated with eating disorder psychopathology and poor weight management. This study aimed to adapt and test the psychometric properties and factor
structure of the Rep(eat)-Q in a Brazilian community sample.
Method: We used the International Test Commission guidelines for the adaptation of
psychological measures between cultures. Participants were recruited from the community and on a university campus and completed a set of questionnaires including
the Rep(eat)-Q, psychological measures, and sociodemographic data.
Results: A total of 718 (86.4% female) completed the Rep(eat)-Q and were eligible
for the confirmatory factor analysis (CFA). Only 542 completed the entire survey
(Rep(eat)-Q and other psychological measures) and were eligible for the analysis of
the validity evidence based on the relations to other variables. CFA revealed support
for a two first-order model as originally proposed, however, a hierarchical
(i.e., second-order) model is proposed. We found support for second-order scalar
invariance across sex. Both first- and second-order internal consistency estimates
presented very good evidence. Analysis (n = 542) revealed moderate to strong correlations (≥.58 to .77) between grazing (total score and subscales) and binge eating and
other psychological measures, presenting good convergent evidence.
Discussion: This study reports good psychometric properties of the Rep(eat)-Q for
the Brazilian community sample.
Public Significance: Grazing is a problematic eating behavior and the Rep(eat)-Q is
one of the measures to assess grazing. The article aimed to adapt and test the psychometric properties of the Rep(eat)-Q in a Brazilian community sample. The results
support a two-factor structure and suggest that the Rep(eat)-Q possesses good psychometric properties to be used with the Brazilian populations
Description
Keywords
Adaptation Assessment Grazing Psychometric properties Repetitive eating
Citation
Teodoro, M. C., Neufeld, C. B., Conceição, E. M., de Lourdes, M., & Sinval, J. (2023). Adaptation, confirmatory factor analysis, and psychometric properties of the Brazilian version of the Repetitive Eating Questionnaire. International Journal of Eating Disorders. https://doi.org/10.1002/eat.23943
Publisher
John Wiley & Sons Inc.