Factorial validity of the Bulimia Test-Revised in adolescent boys and girls.

The present study examined the psychometric properties and principal components structure of the Bulimia Test Revised (BULIT-R; [Thelen, M.H., Farmer, J., Wonderlich, S. & Smith, M. (1991). A revision of the Bulimia Test: the BULIT-R. Psychological Assessment, 3, 119-124.]) using a sample of early adolescent males and females. Three hundred and six girls (mean age = 13.66; S.D. = 1.12) and 297 boys (mean age = 13.89: S.D. = 1.13) from grades 7-10 completed the BULIT-R as part of a larger study investigating disordered eating in early adolescence. In comparison to the 5 factors identified in adult female samples, the factor analysis identified four similar factors for adolescent boys and girls: bingeing, control, normative weight loss (dieting and exercise) and extreme weight loss behaviors (vomiting, diuretics and laxatives). The findings highlight similarities between boys and girls and differences in the factorial nature of the BULIT-R for adult and adolescent samples. The BULIT-R also demonstrated good reliability with adolescent samples and adequate concurrent validity with the DFT, DEBQ and binge eating as defined by the DSM-IV criteria. The emergence of bingeing and control as two distinct factors is an important distinction that needs to be considered when attempting to provide accurate incidence rates of binge eating and bulimic symptomatology in adolescents.