Objectives: Weight bias is defined as negative attitudes towards, and beliefs about, others because of their weight. Like other forms of stigma, weight stigma has a harmful impact on health, including depressive symptoms, disordered eating, body image disturbances and poor quality of life. Several instruments measuring weight- related attitudes have been developed, such as the Attitudes Toward Obese Persons (ATOP). The purpose of this study was to test the psychometric properties of the Italian version of the ATOP (I-ATOP). Methods: The ATOP was adapted into Italian following the back-translation procedure. A total of 800 participants (Mage = 31.40; 54.9% females) completed the I-ATOP alongside the Weight Bias Internalization Scale (WBIS). Exploratory factor analysis (EFA) was conducted on half of the sample, while the remaining half was selected to cross-validate the resulting solution via confirmatory factor analysis (CFA). Factorial invariance tests across gender were computed using multi-group CFA. Results: EFA suggested a one-factor structure with four items excluded due to their low standardised loadings. The trimmed model was cross-validated showing an acceptable fit to the data: MLRχ2 = 159.467 (df = 81); RMSEA = 0.049; CFI = 0.939; TLI = 0.910; SRMR = 0.046. An omega coefficient of 0.818 confirmed the strong reliability of the I-ATOP. Convergent validity was demonstrated by a significant and moderate correlation with the WBIS. Configural, metric, and scalar invariance across gender were established. Conclusions: I-ATOP demonstrated to be a valid and reliable instrument useful for both clinical and research practices, as well as to support the development of educational and therapeutic actions able to reduce the stigma among the general public.

A validation study of the Italian version of the Attitudes Toward Obese Persons (I-ATOP) questionnaire / Zagaria, Andrea; Mocini, Edoardo; Cerolini, Silvia; Donini, Lorenzo Maria; Castelnuovo, Gianluca; Manzoni, Gian Mauro; Pietrabissa, Giada; Lombardo, Caterina. - In: OBESITY RESEARCH & CLINICAL PRACTICE. - ISSN 1871-403X. - (2022). [10.1016/j.orcp.2022.05.004]

A validation study of the Italian version of the Attitudes Toward Obese Persons (I-ATOP) questionnaire

Zagaria, Andrea
Co-primo
;
Mocini, Edoardo
Co-primo
;
Cerolini, Silvia;Donini, Lorenzo Maria;Lombardo, Caterina
Ultimo
2022

Abstract

Objectives: Weight bias is defined as negative attitudes towards, and beliefs about, others because of their weight. Like other forms of stigma, weight stigma has a harmful impact on health, including depressive symptoms, disordered eating, body image disturbances and poor quality of life. Several instruments measuring weight- related attitudes have been developed, such as the Attitudes Toward Obese Persons (ATOP). The purpose of this study was to test the psychometric properties of the Italian version of the ATOP (I-ATOP). Methods: The ATOP was adapted into Italian following the back-translation procedure. A total of 800 participants (Mage = 31.40; 54.9% females) completed the I-ATOP alongside the Weight Bias Internalization Scale (WBIS). Exploratory factor analysis (EFA) was conducted on half of the sample, while the remaining half was selected to cross-validate the resulting solution via confirmatory factor analysis (CFA). Factorial invariance tests across gender were computed using multi-group CFA. Results: EFA suggested a one-factor structure with four items excluded due to their low standardised loadings. The trimmed model was cross-validated showing an acceptable fit to the data: MLRχ2 = 159.467 (df = 81); RMSEA = 0.049; CFI = 0.939; TLI = 0.910; SRMR = 0.046. An omega coefficient of 0.818 confirmed the strong reliability of the I-ATOP. Convergent validity was demonstrated by a significant and moderate correlation with the WBIS. Configural, metric, and scalar invariance across gender were established. Conclusions: I-ATOP demonstrated to be a valid and reliable instrument useful for both clinical and research practices, as well as to support the development of educational and therapeutic actions able to reduce the stigma among the general public.
weight bias; weight stigma; validation study; psychometric properties; weight stereotypes; weight attitudes
01 Pubblicazione su rivista::01a Articolo in rivista
A validation study of the Italian version of the Attitudes Toward Obese Persons (I-ATOP) questionnaire / Zagaria, Andrea; Mocini, Edoardo; Cerolini, Silvia; Donini, Lorenzo Maria; Castelnuovo, Gianluca; Manzoni, Gian Mauro; Pietrabissa, Giada; Lombardo, Caterina. - In: OBESITY RESEARCH & CLINICAL PRACTICE. - ISSN 1871-403X. - (2022). [10.1016/j.orcp.2022.05.004]
File allegati a questo prodotto
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1636479
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 1
  • ???jsp.display-item.citation.isi??? 1
social impact