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Multifactorial assessment of bulimia nervosa
D L Tobin1, C Johnson, S Steinberg
1Department of Psychiatry, University of Chicago, Illinois 60640.
Journal of Abnormal Psychology
|February 1, 1991
Summary
This study supports bulimia nervosa as a unique diagnosis but reveals a complex, multifactorial presentation. Hierarchical factor analysis identified primary and secondary factors, suggesting diverse clinical expressions in eating disorder patients.
Area of Science:
- Psychiatry
- Psychology
- Clinical Psychology
Background:
- Bulimia nervosa is a complex eating disorder.
- Existing diagnostic models may not fully capture its heterogeneity.
Purpose of the Study:
- To investigate a multifactorial approach for assessing bulimia nervosa.
- To explore the diagnostic category's unique and complex presentation using hierarchical factor analysis.
Main Methods:
- Administered a 21-dimension self-report battery to 245 bulimia nervosa patients and 68 patients with anorexia nervosa or eating disorders not otherwise specified.
- Applied hierarchical factor analysis to the collected data.
Main Results:
- Hierarchical factor analysis supported bulimia nervosa as a distinct diagnostic category.
- The analysis revealed 3 secondary factors and 6 primary factors, indicating a complex structure.
- A multifactorial model emerged, integrating existing undimensional models.
Conclusions:
- Bulimia nervosa is a unique diagnostic category.
- The disorder presents with significant complexity, characterized by multiple underlying factors.
- A multifactorial model offers a more comprehensive understanding of bulimia nervosa's divergent clinical presentations.