Validation of the Korean Version of the Eating Disorder Inventory-2: Psychometric Properties and Cross-Cultural Comparison

Abstract

PurposeThe purpose of the present study was to examine the validity and reliability of the Korean version of the Eating Disorder Inventory-2 (EDI-2) in Korean patients with eating disorders and healthy controls, and to investigate cultural differences of EDI-2 between a Korean group and a North American standardization sample.Materials and MethodsThe Korean version of the EDI-2 was prepared after comprehensive clinical assessment of Korean patients with eating disorders (n=327) as well as female undergraduates (n=176). Results were compared between eating disorder subgroups (anorexia nervosa, bulimia nervosa and eating disorders not otherwise specified) and those of a North American standardization sample and healthy controls.ResultsThe results showed that the Korean EDI-2 had adequate internal consistency (0.77-0.93) and discriminated well between patients with eating disorders and healthy controls on all subscales. Significant differences in EDI-2 subscale scores between the eating disorder groups and the healthy control group were observed; however, there was no discernible difference among the eating disorder subgroups. When compared with a North American standardization sample, the Korean control group showed significantly higher scores for drive for thinness and asceticism. When patient groups were compared, the Korean group showed significantly lower scores for perfectionism.ConclusionAs expected, the results accurately reflected psychometric properties of the Korean version of EDI-2 for eating disorder patients in Korea. These findings also suggest that common characteristics for the eating disorder exist as a whole rather than with significant difference between each subgroup. In addition, significant differences between the Korean and the North American groups for both patients and controls also demonstrated specific cultural differences.

Resting-state synchrony between anterior cingulate cortex and precuneus relates to body shape concern in anorexia nervosa and bulimia nervosa

“…Another limitation is that majority of the AN group were binge-eating purging type (restrict type ¼6; binge-eating/purging ¼12) and had similar EDI scores compared to the BN group. Previous studies have reported that the EDI subscale scores are hard to differentiate AN binge-eating/purging type from BN (Garner 1991;Lee et al, 2012). Another thing to consider is that majority of our subjects (17 of 18 AN patients and all of the BN patients) were taking selective serotonin reuptake inhibitors (SSRIs).…”

Predictors of Suicide Attempts in Individuals with Eating Disorders

“…The EDI‐2 is a self‐report test with 11 subscales that measure symptoms and psychological factors associated with EDs: drive for thinness, bulimia, body dissatisfaction, ineffectiveness, perfectionism, interpersonal distrust, interoceptive awareness, maturity fears, asceticism, impulse regulation, and social insecurity (Garner, ). The Cronbach's alpha value for the EDI‐2 is .77–.93 for Koreans (Lee et al., ). The BDI is a self‐report questionnaire that evaluates the intensity of depression (Beck et al., ); the Cronbach's alpha value for the BDI is .85 for Koreans (Hwang et al., ).…”

Identifying Predictors of Non-Suicidal Self-Injuries in Individuals with Eating Disorders

“…2 History of NSSI (positive/negative) and its frequency were evaluated after interviews with the psychiatrist. In addition, in order to objectively evaluate eating psychopathology and other psychopathological features, such as depressing, anxiety, and obsessive-compulsive behavior, we asked all of the subjects to complete self-report questionnaires, such as Eating Disorders Inventory-2 (EDI-2), 23 Beck Depression Inventory (BDI), 24 Beck Anxiety Inventory (BAI), 25 Maudsley Obsessive Compulsive Inventory (MOCI). 26 …”

“… 23 27 The Cronbach's alpha value for the EDI-2 is 0.77–0.93 for Koreans. 23 The MOCI is a 30-item self-report test that assesses four types of obsessive compulsive complaints: checking, washing, doubting, and slowness. The Cronbach's alpha value of MOCI is 0.80 for Koreans.…”

“…2 History of NSSI (positive/negative) and its frequency were evaluated after interviews with the psychiatrist. In addition, in order to objectively evaluate eating psychopathology and other psychopathological features, such as depressing, anxiety, and obsessive-compulsive behavior, we asked all of the subjects to complete self-report questionnaires, such as Eating Disorders Inventory-2 (EDI-2), 23 Beck Depression Inventory (BDI), 24 Beck Anxiety Inventory (BAI), 25 Maudsley Obsessive Compulsive Inventory (MOCI). 26 The EDI-2 is a self-report questionnaire consisting of 91 items scored on a 6-point scale, with 11 subscales that measure symptoms and psychological factors associated with ED symptoms: drive for thinness, bulimia, body dissatisfaction, ineffectiveness, perfectionism, interpersonal distrust, interoceptive awareness, maturity fears, asceticism, impulse regulation, and social insecurity.…”