Viren Swami1,2, Christophe Maïano3, Adrian Furnham4, Charlotte Robinson5. 1. School of Psychology and Sport Science, Anglia Ruskin University, East Road, Cambridge, CB1 1PT, Cambridgeshire, UK. viren.swami@aru.ac.uk. 2. Centre for Psychological Medicine, Perdana University, Kuala Lumpur, Malaysia. viren.swami@aru.ac.uk. 3. Cyberpsychology Laboratory and Department of Psychoeducation and Psychology, Université du Québec en Outaouais, Saint-Jérôme, Canada. 4. Department of Leadership and Organizational Behaviour, Norwegian Business School, Oslo, Norway. 5. Department of Psychology, University of Bath, Bath, UK.
Abstract
PURPOSE: Previous studies examining the appropriateness of the 4-factor model of intuitive eating scale-2 (IES-2) scores have returned equivocal results, which may reflect methodological limitations in the way IES-2 scores are modelled. Here, we applied a bifactor-exploratory structural equation modelling (B-ESEM) framework to better understand IES-2 multidimensionality. METHODS: A total of 603 participants from the United States completed the IES-2, alongside measures of body appreciation, body acceptance from others, and self-esteem. Our analyses compared the fit of various hypothesised models of IES-2 scores. RESULTS: Models of IES-2 scores based on confirmatory factor analysis (CFA) uniformly showed poor fit. ESEM models showed superior fit to CFA representations and a B-ESEM model showed improved fit over higher-order CFA and B-CFA representations of IES-2 scores. The optimal model was a B-ESEM model that accounted for, through correlated uniqueness (CU), the methodological artefact introduced by negatively-worded IES-2 items. This B-ESEM-CU model was fully invariant across gender and showed adequate construct validity. CONCLUSION: The B-ESEM-CU framework appears well-suited to understand the multidimensionality of IES-2 scores. A model of IES-2 scores that yields a reliable latent indicator of global intuitive eating while allowing for simultaneous consideration of additional specific factors will likely provide more accurate accounting of the nature and outcomes of intuitive eating. LEVEL OF EVIDENCE: Level III, cohort study.
PURPOSE: Previous studies examining the appropriateness of the 4-factor model of intuitive eating scale-2 (IES-2) scores have returned equivocal results, which may reflect methodological limitations in the way IES-2 scores are modelled. Here, we applied a bifactor-exploratory structural equation modelling (B-ESEM) framework to better understand IES-2 multidimensionality. METHODS: A total of 603 participants from the United States completed the IES-2, alongside measures of body appreciation, body acceptance from others, and self-esteem. Our analyses compared the fit of various hypothesised models of IES-2 scores. RESULTS: Models of IES-2 scores based on confirmatory factor analysis (CFA) uniformly showed poor fit. ESEM models showed superior fit to CFA representations and a B-ESEM model showed improved fit over higher-order CFA and B-CFA representations of IES-2 scores. The optimal model was a B-ESEM model that accounted for, through correlated uniqueness (CU), the methodological artefact introduced by negatively-worded IES-2 items. This B-ESEM-CU model was fully invariant across gender and showed adequate construct validity. CONCLUSION: The B-ESEM-CU framework appears well-suited to understand the multidimensionality of IES-2 scores. A model of IES-2 scores that yields a reliable latent indicator of global intuitive eating while allowing for simultaneous consideration of additional specific factors will likely provide more accurate accounting of the nature and outcomes of intuitive eating. LEVEL OF EVIDENCE: Level III, cohort study.
Authors: Viren Swami; Jennifer Todd; Hanoor Syahirah Zahari; Nor Azzatunnisak Mohd Khatib; Evelyn Kheng Lin Toh; David Barron Journal: Body Image Date: 2020-01-22
Authors: Esben Strodl; Charlotte Markey; Annie Aimé; Rachel F Rodgers; Jacinthe Dion; Gianluca Lo Coco; Salvatore Gullo; Marita McCabe; David Mellor; Antonio Granero-Gallegos; Alvaro Sicilia; Gianluca Castelnuovo; Michel Probst; Christophe Maïano; Gian Mauro Manzoni; Catherine Begin; Marie-Eve Blackburn; Giada Pietrabissa; Manuel Alcaraz-Ibánez; Naomi Hayami-Chisuwa; Qiqiang He; Marie L Caltabiano; Matthew Fuller-Tyszkiewicz Journal: Body Image Date: 2020-11-02