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September 10, 2026Body ImageOpen Access

Psychometric properties of the Portuguese version of the Body Image Life Disengagement Questionnaire

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Authors

SFSara Ribeiro de FariaUniversidade do PortoSTSandra TorresUniversidade do Porto

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Implication

Psychometric evaluation demonstrates robust validity and gender invariance of the BILD-Q in adolescents, highlighting its reliability for measuring body image-related life disengagement.

Key Points

  • Evaluate the factor structure and psychometric properties of the Portuguese adaptation of the Body Image Life Disengagement Questionnaire (BILD-Q) in adolescents.
  • Surveyed N = 727 adolescents aged between 13 and 18 years old in Portugal.
  • Conducted exploratory and confirmatory factor analyses along with multi-group confirmatory factor analysis to evaluate scale dimensionality and gender invariance.
  • Assessed internal consistency, convergent validity with measures of body image and well-being, and concurrent incremental validity for predicting self-esteem.
  • Analyses validated a unidimensional factor structure for the questionnaire that was invariant across gender.
  • Scores exhibited convergent validity through positive associations with body dissatisfaction, thin-ideal internalization, and social pressures, as well as negative correlations with self-esteem and quality of life.
  • Incremental validity was established, with questionnaire scores explaining significant unique variance in adolescent self-esteem.

Cite This Study

Faria et al. (2026) studied this question.

synapsesocial.com/papers/6aa27a7f58559d80afc7313ehttps://doi.org/10.1016/j.bodyim.2026.102185
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