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The Eating Disorder Test is a 64-item, 6-point forced-choice inventory assessing several behavioral and psychological traits common in two eating disorders, bulimia and anorexia nervosa. The Eating Disorder Inventory, a self-report measure, may be utilized as a screening device, outcome measure, or part of typological research. It is not purported to be a diagnostic test for anorexia nervosa or bulimia. Scoring: The Eating Disorder Inventory consists of 8 subscale scores: drive for thinness, bulimia, body dissatisfaction, ineffectiveness, perfectionism, interpersonal distrust, interoceptive awareness, and maturity fears. Reliability: The average item total correlation of the eight subscales of the Eating Disorder Inventory was .63 (SD = .13). Reliability information was based on 271 college women on whom completed information on all subscales was obtained. Reliability coefficients (standardized Chronbach's alphas) for the anorexia nervosa group ranged from .83 (Interoceptive Awareness) to .93 (Ineffectiveness). Reliability coefficients for the female college students ranged from .72 (Maturity Fears) to .92 (Body Dissatisfaction). |
Validity: Criterion-related validity studies were performed by comparing the Eating Disorder Inventory patient profiles with the judgments of clinicians familiar with the patient's psychological presentation. A subgroup of 49 of the anorexia nervosa patients who had completed the Eating Disorder Inventory was assigned two raters: a psychologist and psychiatrist who were familiar with the patients, being their primary therapist or consultant. The raters were provided with the description of the subscale content and with the patients' total score percentile rank within the entire anoretic sample. All interrater correlations were significant at the p < .001 level and ranged from .43 (Maturity Fears) to .68 (Ineffectiveness).
Norms: Two groups of respondents participated in the validation of the Eating Disorder Inventory. The criterion group (n = 129) was composed of three subsamples of women, mostly anorexics. These women averaged 20% below the expected weight for their height and age. In this sample, 56 were classified as "restricters" and 73 were diagnosed as bulimic. The comparison group (n = 770) consisted of three samples of female university students who were enrolled in introductory and upper-level psychology classes. These volunteers were administered the Eating Disorder Test in their classes.
Suggested Uses: The Eating Disorder Test is recommended to delineate subtypes of anorexia nervosa in clinical or research settings.
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