Measurement invariance of the Broad Conceptualization of Beauty Scale (BCBS) across Black, Hispanic, and White women in the United States

The Broad Conceptualization of Beauty Scale (BCBS) assesses the degree to which women perceive diverse appearances and internal qualities as being beautiful. Although the instrument is increasingly used in diverse national and linguistic contexts, no previous study has examined measurement invariance of the BCBS across racial groups. To rectify this, we asked 395 Black, 406 Hispanic, and 423 White women from the United States to complete the BCBS. Confirmatory factor analysis indicated that a unidimensional model of BCBS scores had poor fit to the data in the total sample, but freely estimating error covariances between six pairs of items resulted in adequate fit. Additionally, full configural and scalar invariance was supported, but metric invariance was not, with further testing indicating that the item loading for one item differed across groups. Comparison of latent means indicated that all between-groups comparisons in BCBS scores were non-significant. However, medium-sized group differences in BCBS scores emerged once group differences in key demographics were controlled for. Overall, these results suggest that the BCBS largely achieves measurement invariance across Black, Hispanic, and White women in the United States, suggestive of similarity in how the construct of broad conceptualisation of beauty is understood and experienced.