Screening for Eating Disorders Utilizing the Minnesota Multiphasic Personality Inventory
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Andrews University Digital Commons @ Andrews University Dissertations Graduate Research 1999 Screening for Eating Disorders Utilizing the Minnesota Multiphasic Personality Inventory Roseann M. Woodka Andrews University Follow this and additional works at: https://digitalcommons.andrews.edu/dissertations Part of the Nutritional and Metabolic Diseases Commons, and the Other Medical Sciences Commons Recommended Citation Woodka, Roseann M., "Screening for Eating Disorders Utilizing the Minnesota Multiphasic Personality Inventory" (1999). Dissertations. 1559. https://digitalcommons.andrews.edu/dissertations/1559 This Dissertation is brought to you for free and open access by the Graduate Research at Digital Commons @ Andrews University. It has been accepted for inclusion in Dissertations by an authorized administrator of Digital Commons @ Andrews University. For more information, please contact [email protected]. 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Further reproduction prohibited without permission. Andrews University School of Education SCREENING FOR EATING DISORDERS UTILIZING THE MINNESOTA MULTIPHASIC PERSONALITY INVENTORY A Dissertation Presented in Partial Fulfillment of the Requirements for the Degree Doctor of Philosophy by Roseann M. Woodka June 1999 Reproduced with permission of the copyright owner. Further reproduction prohibited without permission. UMI Number: 9929075 Copyright 1999 by Woodka, Roseann Marie All rights reserved. UMI Microform 9929075 Copyright 1999, by UMI Company. All rights reserved. This microform edition is protected against unauthorized copying under Title 17, United States Code. UMI 300 North Zeeb Road Ann Arbor, MI 48103 Reproduced with permission of the copyright owner. Further reproduction prohibited without permission. ©Copyright by Roseann M. Woodka 1999 Ail Rights Reserved Reproduced with permission of the copyright owner. Further reproduction prohibited without permission. SCREENING FOR EATING DISORDERS UTILIZING THE MINNESOTA MULTIPHASIC PERSONALITY INVENTORY A dissertation presented in partial fulfillment of the requirements for the degree of Doctor of Philosophy by Roseann M. Woodka APPROVAL BY THE COMMITTEE: ^ ________ Chair: Jimmy/Kijai Director off Graduate Programs Jerome D\ Thayei/ Member. Nancy J. Carbonell Dean, School oft Education Karen R. Graham "Tfe, at. <m Member: Frederick A. Kosinski, Jj Datete app approved Reproduced with permission of the copyright owner. Further reproduction prohibited without permission. ABSTRACT SCREENING FOR EATING DISORDERS UTILIZING THE MINNESOTA MULTIPHASIC PERSONALITY INVENTORY by Roseann M. Woodka Chair: Jimmy Kijai Reproduced with permission of the copyright owner. Further reproduction prohibited without permission. ABSTRACT OF GRADUATE STUDENT RESEARCH Dissertation Andrews University School of Education Title: SCREENING FOR EATING DISORDERS UTILIZING THE MINNESOTA MULTIPHASIC PERSONALITY INVENTORY Name of researcher: Roseann M. Woodka Name and degree of faculty chair: Jimmy Kijai, Ph.D. Date completed: June 1999 Problem Eating disorders, in the form of anorexia nervosa and bulimia nervosa, have been recognized as significant mental-health issues for the last three decades, and the incidence is rising as we approach the new millennium. Currently, many women who come into a mental-health setting due to depression, anxiety, low self-esteem, relationship issues, sexual issues, etc., are also struggling with eating-disordered behaviors, thoughts, and feelings. These behaviors, thoughts, and feelings may remain well hidden from the counselor throughout the course of therapy or until they become severe and more difficult to treat. Because eating disorders are very complex involving psychological, physical, and mental functioning, and because the symptoms become progressively more severe, early Reproduced with permission of the copyright owner. Further reproduction prohibited without permission. detection and intervention are essential for optimal outcome. Numerous assessment instruments exist but are not employed until obvious signs of eating disorders are exhibited. This study was designed to develop a subscale from the MMPI-2 items which will screen for eating disorders. Since the MMPI-2 is widely used early in the process of psychological evaluation, it was deemed the desirable instrument to use. Method The methodology for this study involved scale development and included four phases. Phase 1 was the initial study in which 354 MMPI answer sheets from eating- disordered individuals were compared to 238 MMPI answer sheets from non-eating- disordered individuals in order to determine MMPI items which differentiate between the two groups. Phase 2 utilized expert judges to evaluate the pertinence of each item on an eating-disorder questionnaire and to assign directionality. Phase 3 involved administering the items remaining after the first two phases to a new research sample comprised of eating-disordered and non-eating-disordered subjects. Phase 4 entailed eliminating the items which did not meet the total correlation criterion, and computing internal consistency using Cronbach’s alpha coefficient for the remaining items. Results This research resulted in the development of a 68-item proposed MMPI-2 subscale to screen for anorexia nervosa and bulimia nervosa. Each item met the differential criterion at the .01 level and the correlation coefficient at .33. The proposed MMPI-2 subscale has a reliability of .971 and its composition is unifactorial. Reproduced with permission of the copyright owner. Further reproduction prohibited without permission. Conclusions This research establishes the efficacy of utilizing the MMPI-2 to screen for eating disorders. Additional administration of the instrument is needed before it should move from research into practice. Reproduced with permission of the copyright owner. Further reproduction prohibited without permission. TABLE OF CONTENTS LIST OF TABLES....................................................................................................... vi LIST OF FIGURES.................................................................................................... vi ACKNOWLEDGMENTS........................................................................................ vii Chapter I. INTRODUCTION............................................................................................ I Overview.......................................................................................................... 1 Statement of the Problem .............................................................................. 3 Significance of the Study .............................................................................. 4 Definitions ........................................................................................................ 6 Anorexia Nervosa .................................................................................... 6 Bulimia Nervosa ...................................................................................... 7 Eating D isorder....................................................................................... 8 Minnesota Multiphasic Personality Inventory (MMPI) 8 Eating Disorders Inventory-2 (EDI-2) ............................................... 8 Michiana Area.......................................................................................... 8 Delimitations ................................................................................................... 8 Limitations ..................................................................................................... 9 Organization of the Following Chapters .........................................