Validation and measurement invariance of the Muscularity-Oriented Eating Test among Brazilian men and women.

Autor: de Carvalho PHB; NICTA, Body Image and Eating Disorders Research Group, Federal University of Juiz de Fora, Governador Valadares, Brazil.; AMBULIM, Eating Disorders Program, Institute of Psychiatry, University of São Paulo, São Paulo, Brazil., Bagolin V; Department of Nutrition, University of Ribeirão Preto, Ribeirão Preto, Brazil., Junqueira ACP; Department of Nutrition, University of Ribeirão Preto, Ribeirão Preto, Brazil., Nagata JM; Department of Pediatrics, University of California, San Francisco, California, USA., Cattle CJ; Department of Pediatrics, University of California, San Francisco, California, USA., Murray SB; Department of Psychiatry and Behavioral Sciences, University of Southern California, Los Angeles, California, USA., Compte EJ; Eating Behavior Research Center, School of Psychology, Universidad Adolfo Ibáñez, Santiago, Chile.; Research Department, Comenzar de Nuevo Treatment Center, Monterrey, Mexico., Costa TMB; Department of Nutrition, University of Ribeirão Preto, Ribeirão Preto, Brazil.; Department of Psychology, University of São Paulo, Ribeirão Preto, Brazil., Almeida SS; Department of Psychology, University of São Paulo, Ribeirão Preto, Brazil., Laus MF; Department of Nutrition, University of Ribeirão Preto, Ribeirão Preto, Brazil.; Department of Psychology, University of São Paulo, Ribeirão Preto, Brazil.
Jazyk: angličtina
Zdroj: The International journal of eating disorders [Int J Eat Disord] 2023 Apr; Vol. 56 (4), pp. 708-720. Date of Electronic Publication: 2022 Mar 12.
DOI: 10.1002/eat.23702
Abstrakt: Objective: The Muscularity-Oriented Eating Test (MOET) is a 15-item unidimensional scale, designed to assess eating practices that occur in the pursuit of a muscular body. The aim of the present study was to describe the translation and cultural adaptation of the MOET to Brazilian Portuguese, to explore its factor structure and measurement invariance, and to evaluate its internal consistency, three-week test-retest reliability, and convergent validity in a community sample of Brazilian men and women.
Method: After the back-translation procedure, the Brazilian MOET was administered online to a sample of 1246 adults (634 men and 612 women), along with measures of drive for muscularity, muscle dysmorphia symptoms, muscular/athletic-ideal internalization, disordered eating behaviors, and exercise dependence.
Results: Findings from an exploratory factor analysis and a confirmatory factor analysis revealed a one-factor structure and adequate internal consistency for men (ω = 0.86; α = 0.86) and women (ω = .84; α = .83). Measurement invariance across gender was supported. In addition, the scale demonstrated good three week test-retest reliability for both men (ICC = .96; p < .001) and women (ICC = .92; p < .001), and the subscales revealed moderate to large associations with drive for muscularity, muscle dysmorphia symptoms, muscular/athletic-ideal internalization, disordered eating, and exercise dependence.
Conclusion: This study supports the validity and reliability of the MOET in a community sample of Brazilian men and women and represents an advance in measures of muscularity-oriented disordered eating in Brazilian adults, allowing for future cross-cultural studies in this field.
Public Significance: The Muscularity-Oriented Eating Test (MOET) is a measure of muscularity-oriented disordered eating, which assess strict adherence to diet rules, including the food's macronutrient content, regulation of protein intake, and eating less or more to influence muscle gain. This study evaluated the validity and reliability of the MOET in a community sample of Brazilian men and women. Our findings represent an advance in measures of muscularity-oriented disordered eating in Brazilian adults.
(© 2022 Wiley Periodicals LLC.)
Databáze: MEDLINE
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