Purpose: Designed as a self-report measure of psychological features commonly associated with anorexia nervosa and bulimia nervosa.
Population: Ages 12 and over.
Scores: 11 scores: Drive for Thinness, Bulimia, Body Dissatisfaction, Ineffectiveness, Perfectionism, Interpersonal Distrust, Interoceptive Awareness, Maturity Fears, Asceticism (provisional), Impulse Regulation (provisional), Social Insecurity (provisional).
Time: (20) minutes.
Author: David Garner.
Publisher: Psychological Assessment Resources, Inc.
Description: The Eating Disorder Inventory (EDI-2) is a self-report measure of symptoms frequently related to anorexia nervosa or bulimia nervosa. As such, the EDI-2 was designed as an aid to forming a diagnosis and not as the exclusive basis for making a diagnosis. The EDI-2 provides clinical information regarding the psychological and behavioral dimensions of eating disorders. The EDI-2 package also includes the EDI Symptom Checklist (EDI-SC), a structured self-report form soliciting current and historical information about the client’s eating-related and menstrual history.
Scoring: The EDI-2 retains the 64 items (grouped into eight scales) of the EDI and adds 27 new items into three provisional scales: Asceticism, Impulse Regulation, and Social Insecurity.
Reliability: Internal consistency reliability coefficients for the EDI-2 scales are between .44 and .93. Test-retest reliability for EDI-2 administered one week apart to 70 student and staff nurses revealed coefficients of .79 to .95 for all subscales except Interoceptive Awareness. After 3 weeks, test-retest reliabilities for 70 nonpatient university undergraduates were all above .80, excluding Maturity Fears.
Validity: The original subscales show appropriate content, convergent, and discriminant validity. Further, many of the findings from these earlier validation studies have been replicated by new research. Correlations between EDI scales and other personality instruments also yielded many positive correlations (from about -.08 to .76) indicating that the constructs measured by the EDI involve to some degree other personality characteristics not unique to eating disorders. The psychometric properties of the instrument are sound and the constructs measure symptom domains and have clinical utility. The authors of the measure have evidence the EDI-2 is sensitive to clinical change and that it can play a valuable role in clinical evaluations of eating disorder patients.
Norms: College-age females.
Suggested Uses: Psychiatrists, psychologists, and social workers
who work with young women or me who are suspected or known to have eating
disorders would benefit from using the EDI-2. It can also help expand clinical
knowledge about eating disorders and associated attributes.