Continuity and discontinuity models of bulimia nervosa: a taxometric investigation.

Past research evaluating the continuity and discontinuity models of bulimia has produced inconclusive results. In the current study, we performed a taxometric analysis of bulimia nervosa using means above minus below a sliding cut and maximum covariance analysis with a sample of women diagnosed with bulimia nervosa (n = 201) or women college students (n = 412). Indicators were derived from the Bulimia Test--Revised and the Eating Attitudes Test--26, and both a mixed sample and the nonclinical sample were analyzed. With both taxometric methods and both mixed and nonclinical samples, results were consistently suggestive of a latent taxon for bulimia. These results challenge a dimensional model of bulimia nervosa.

Comparisons of body image dimensions by race/ethnicity and gender in a university population.

OBJECTIVE: We examined affective and cognitive components of body image related to physical appearance, weight, and health among 120 university men and women of three racial/ethnic groups: African American, European American, and Latino/a American. METHOD: Participants completed a Background Information Sheet, the Multidimensional Body-Self Relations Questionnaire (MBSRQ), the Body-Esteem Scale (BES) with additional items, and the Balanced Inventory of Desirable Responding (BIDR). We tested for effects of race/ethnicity and gender on the body image measures while controlling for age, body size, social desirability, and socioeconomic status (SES). RESULTS: African Americans reported greatest body satisfaction and least overestimation of weight. Latino/a Americans were equal to or higher than European Americans on all indices. Gender differences occurred on global body image, weight concerns, fitness, and health. There were no Gender x Race/Ethnicity interactions. DISCUSSION: This pattern of racial/ethnic and gender differences shows a need for exploring a wider range of culturally relevant body image dimensions.