Abstract
Summary The present study establishes the validity of the Dutch translation of the EDI-2 by determining its factor structure, construct validity and its effectiveness for screening using a clinical and two nonclinical populations. An earlier study had shown that item transformation damaged the validity of the EDI-1 in a nonclinical population of female high-school students. Therefore, the issue of the use of transformed (0-3) versus untransformed (1-6) item responses was addressed first. The present study replicated the earlier finding for the EDI-2 in the same population and similar results were also found in another nonclinical population of female college students. Furthermore, untransformed responses were found to also work well in a clinical population of female patients suffering from eating disorders. Accordingly, further analyses were based on untransformed responses. The factorial integrity of the original 64-item EDI-1 was best supported in the clinical group and the nonclinical group of college students, but the three provisional scales performed poorly in terms of internal consistency and factorial integrity. In all three populations, the EDI-2 was shown to be specific for eating-disorder pathology, and to have good construct validity. It is concluded that the EDI-2 is a suitable screening tool to identify those cases in large populations that warrant more thorough examination.
References
References
Anderon, T., Meshot, C.M. (1992). The relationship of the Eating Disorder Inventory with the SCL-90 and the MMPI in college women.. Personality and Individual Differences, 13, 249– 253Arrindell, W.A., Ettema, H. (1981). Dimensionele structuur, betrouwbaarheid en validiteit van de Nederlandse bewerking van de Symptom Checklist (SCL-90); gegevens gebaseerd op een fobische en een “normale” populatie ‘Dimensional structure, reliability and validity of the Dutch version of the SCL-90; and a “normal” population’.. Nederlands Tijdschrift voor de Psychologie, 4, 77– 108(1994). DSM-IV diagnostic and statistical manual of mental disorders (4th ed.).. Washington, DC: Author.
Bennett, K., Stevens, R. (1997). The internal structure of the Eating Disorder Inventory.. Health Care for Women International, 18, 495– 504Bruch, H. (1962). Perceptual and conceptual disturbances in anorexia nervosa.. Psychosomatic Medicine, 24, 187– 194Cole, S.H., Edelman, R.J. (1987). Restraint, eating disorders and need to achieve in state and public school subjects.. Personality and Individual Differences, 8, 475– 482Cooper, Z., Cooper, P., Fairburn, C. (1985). The specificity of the Eating Disorder Inventory.. British Journal of Clinical Psychology, 24, 129– 130Derogatis, L.R. (1977). The SCL-90 manual: I Scoring, administration, and procedures for the SCL-90. . MD: Clinical Psychometric Research.Eberenz, K.P., Gleaves, D.H. (1994). An examination of the internal consistency and factor structure of the Eating Disorder Inventory-2 in a clinical sample.. International Journal of Eating Disorders, 16(4), 371– 379Garner, D.M. (1991). Eating Disorder Inventory-2 manual. . Odessa, FL: Psychological Assessment Resources.Garner, D.M., Olmstead, M.P. (1983). The Eating Disorder Inventory manual. . Odessa, FL: Psychological Assessment Resources.Klemchuk, H.P., Hutchinson, C.B., Frank, R.I. (1990). Body dissatisfaction and eating-related problems on the college campus: Usefulness of the Eating Disorder Inventory with a nonclinical population.. Journal of Counseling Psychology, 37, 297– 305Lee, L., Lee., A., Leung, T., Yu, H. (1997). Psychometric properties of the Eating Disorder Inventory (EDI-1) in a nonclinical Chinese population in Hong Kong.. International Journal of Eating Disorders, 21, 187– 194Machado, P.P.P., Gonçalves, S., Martins, C., Soares, I.C. (2001). The Portuguese version of the Eating Disorders Inventory: Evaluation of its psychometric properties.. European Eating Disorders Review, 9, 43– 52Morrison, D.F. (1976). Multivariate statistical methods. . New York: McGraw-Hill.Norring, C., Sohlberg, S. (1988). Eating Disorder Inventory in Sweden: Description, cross-cultural comparison, and clinical utility.. Acta Psychiatrica Scandinavia, 78, 567– 575Norring, C.E.A. (1990). The Eating Disorder Inventory: Its relation to diagnostic dimension and follow-up status.. International Journal of Eating Disorders, 9, 685– 694Nunnally, J.K. (1967). Psychometric theory. . New York: McGraw-Hill.Reas, D.L., Williamson, D.A., Martin, C.K., Zucker, N.L. (2000). Duration of illness predicts outcome for bulimia nervosa: A long-term follow-up study.. International Journal of Eating Disorders, 27, 428– 434Rosen, J.C., Silberg, R.A., Gross, J. (1988). Eating Attitudes Test and Eating Disorder Inventory: Norms for adolescents and boys.. Journal of Consulting and Clinical Psychology, 56, 305– 308Schoemaker, C., Van Strien, T., Van der Staak, C. (1994). Validation of the Eating Disorder Inventory in a nonclinical population using transformed and untransformed responses.. International Journal of Eating Disorders, 15, 387– 393Schoemaker, C., Verbraak, M., Breteler, R., Van der Staak, C. (1997). The discriminant validity of the Eating Disorder Inventory-2.. British Journal of Clinical Psychology, 36, 627– 629Selvini-Palazzoli, M. (1978). Self-starvation from individual to family therapy in the treatment of anorexia nervosa. . New York: John Aronson.Shore, R.A., Porter, J.E. (1990). Normative and reliability data for 11- to 18-year-olds on the Eating Disorder Inventory.. International Journal of Eating Disorders, 9, 201– 207Steinhausen, H.C. (1983/1985). Anorexia Nervosa: Transcultural comparison.. Pediatrician, 12, 157– 163Steinhausen, H.C., Neumärker, K.J., Vollrath, M., Dudeck, U., Neumärker, U. (1992). A transcultural comparison of the Eating Disorder Inventory in the former East and West Berlin.. International Journal of Eating Disorders, 12, 407– 416Thiel, A., Jacobi, C. Horstmann, S. Paul, T. Nutzinger, D.O., Schüßler, G. (1997). Eine deutchsprachige Version des Eating Disorder Inventory EDI-2 ‘A German translation of the Eating Disorder Inventory EDI-2’.. Psychotherapie Psychosomatik Medizinische Psychologie, 47, 365– 376Thiel, A., Paul, T. (1988). Entwicklung einer deutschsprachigen Version des Eating-Disorder-Inventory (EDI) ‘Development of a German version of the Eating Disorder Inventory (EDI)’.. Zeitschrift für Differentielle und Diagnostische Psychologie, 9, 267– 278Van Strien, T. (1997). The concurrent validity of a classification of dieters with low versus high susceptibility toward failure of restraint.. Addictive Behaviors, 22, 587– 597Van Strien, T. (2002). EDI-II-NL manual. . Lisse: Swets & Zeitlinger.Van Strien, T., Frijters, J.E.R., Bergers, G.P.A., Defares, P.B. (1986). The Dutch Eating Behavior Questionnaire (DEBQ) for assessment of restrained, emotional and external eating behavior.. International Journal of Eating Disorders, 5, 295– 315Welch, G., Hall, A., Norring, C. (1990). The factor structure of the Eating Disorder Inventory in a patient setting.. International Journal of Eating Disorders, 9, 79– 85Welch, G., Hall, A., Walkey, F. (1988). The factor structure of the Eating Disorder Inventory.. Journal of Clinical Psychology, 44, 51– 56Wheaton, B. (1988). Assessment of fit in overidentified models with latent variables.. In L.J.S. (Ed.), Common problems, proper solutions: Avoiding error in quantitative research (pp. 193-225). Newbury Park, CA: Sage.Wheaton, D.E., Muthen, B., Alwin, D., Sommers, G.F. (1977). Assessing reliability and stability in panel models.. In D.R. Heise (Ed.), Sociological methodology (pp. 84-136). San Francisco: Jossey Bass.
