A bifactor analysis of the Weight Bias Internalization Scale: what are we really measuring?

Research output: Contribution to journalArticlepeer-review


External organisations

  • University of Western Australia, Fremantle Hospital, Fremantle, Perth, Western Australia.


Internalized weight stigma (IWS) has been linked with disordered eating behavior, both directly, and as a mediator of the relationship between experienced weight stigma and maladaptive coping. However, the construct of IWS is highly correlated with the related constructs of body image and global self-esteem, and the three constructs may better be represented by underlying trait self-judgment. This overlap is not generally accounted for in existing studies. The present study investigated the shared variance between self-esteem, body image, and IWS in an international sample of higher-weight individuals. Bifactor analysis confirmed that the intermediary role of IWS in the relationship between experienced stigma and self-reported eating behavior was largely accounted for by aspects of body image and global self-esteem. Greater conceptual clarity in the study of IWS is needed to understand the mechanisms via which societal weight stigma impacts on individuals' self-directed judgments and downstream health-related behaviors.

Bibliographic note

Copyright © 2020 Elsevier Ltd. All rights reserved.


Original languageEnglish
Pages (from-to)137-151
Number of pages15
JournalBody Image
Early online date7 Mar 2020
Publication statusPublished - Jun 2020


  • Bifactor analysis, Body image, Disordered eating, Internalized weight stigma, Self-esteem, Self-judgment