Assessing the impact of body image concerns on functioning across life domains: Development and validation of the Body Image Life Disengagement Questionnaire (BILD-Q) among British adolescents. (June 2021)

• Record Type: Journal Article
• Authors: Atkinson, Melissa J.; Diedrichs, Phillippa C.
• Is Part Of: Body image. Volume 37(2021)
• Page Start: 63
• Page End: 73
• Publication Date: 2021-06
• Subjects: Body image -- Functioning -- Quality of life -- Validation -- Psychometrics -- Adolescents; Body image -- Periodicals; Body image -- Research -- Periodicals; Body Image -- Periodicals; 306.4613
• DOI: 10.1016/j.bodyim.2021.01.009
• Languages: English
• ISSNs: 1740-1445

Abstract

Highlights: The Body Image Life Disengagement Questionnaire (BILD-Q) captures broad impacts. A 9-item unidimensional factor structure was supported in adolescents. The BILD-Q shows internal consistency and test-retest reliability. Gender invariance indicates the BILD-Q can be used comparatively. Convergent and incremental validity indicates value beyond existing measures. Abstract: Assessing the impact of body image on engagement in a range of life domains is important; however, there is a lack of validated measures for adolescents. The current research developed the Body Image Life Disengagement Questionnaire (BILD-Q) and validated it among four samples of British adolescents. Study 1 ( N = 1707; 11–13 years) indicated a 9-item unidimensional scale based on Exploratory Factory Analysis. In Study 2 ( N = 1403; 11–13 years), Confirmatory Factor Analysis (CFA) showed an acceptable fit overall, but better among girls than boys. Further exploration with CFA in Study 3 ( N = 2034; 13–14 years) showed a good to excellent fit overall, and acceptable among both boys and girls. The scale showed good internal consistency and test-retest reliability, and gender invariance indicated the scale can be used comparatively. In Study 4 ( N = 288; 13–14 years), convergent validity was supported via expected relationships with body image and related constructs. Concurrent and predictive incremental validity were also evidenced via explaining significant unique variance in well-being. These studies provide support for the BILD-Q as a reliable and valid measure of broader impacts of body image among adolescents, which may benefit intervention evaluation and policy change efforts.