ABSTRACT
PURPOSE: The 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 METHODS: The 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. RESULTS: The 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. CONCLUSION: As 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.
Subject(s)
Adult , Female , Humans , Young Adult , Asian People , Cross-Cultural Comparison , Feeding and Eating Disorders/psychology , PsychometricsABSTRACT
Objective: To analyze the psychometric properties of the test EDI-2 to evaluate eating disorders in Chilean adolescents Method: The sample was constituted by 1,429 adolescents (595 men and 835 women) between 13 and 18 years from the city of Antofagasta, to whom the EDI-2 test was applied. The reliability and the validity of the instrument were evaluated by factorial analysis and t-test. Results: The majority of the dimensions and the total scale have alphas above 0.70. Factorial structure observed was similar to the theoretical proposal. Conclusions: The EDI-2 test with corrections applied to Chilean population is a reliable and valid instrument for use as a screening tool in early detection of eating disorders.
Objetivo: Analizar las propiedades psicométricas de la prueba EDI-2 para evaluar trastornos alimentarios en población chilena. Método: La muestra quedó constituida por 1.430 adolescentes escolarizados (595 hombres y 835 mujeres) entre 13 y 18 años, de la ciudad de Antofagasta, a los que se les aplicó la prueba EDI-2. Se analizó la Habilidad y la validez del instrumento a través de análisis factoriales y pruebas T. Resultados: La gran mayoría de las dimensiones, así como la escala total, presentaron alfas superiores a 0,70. La estructura factorial observada fue similar a la propuesta teórica. Conclusiones: El EDI-2 aplicado con correcciones para la población Chilena es un instrumento fiable y válido para ser utilizado como herramienta de tamizaje en la detección precoz de trastornos alimentarios.