This work was supported by NWO innovational research grant no. 451-03-068. I would like to thank Ellen Hamaker, Marieke Timmerman, and Jan-Henk Kamphuis for providing feedback on an earlier version of this paper.
Psychometric perspectives on diagnostic systems†
Article first published online: 6 AUG 2008
© 2008 Wiley Periodicals, Inc.
Journal of Clinical Psychology
Special Issue: Special Issue: Scientific Method, Abduction, and Clinical Reasoning
Volume 64, Issue 9, pages 1089–1108, September 2008
How to Cite
Borsboom, D. (2008), Psychometric perspectives on diagnostic systems. J. Clin. Psychol., 64: 1089–1108. doi: 10.1002/jclp.20503
- Issue published online: 6 AUG 2008
- Article first published online: 6 AUG 2008
- diagnostic systems;
- theoretical psychology;
- latent variable models;
- causal networks
The author identifies four conceptualizations of the relation between symptoms and disorders as utilized in diagnostic systems such as the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV; American Psychiatric Association, 1994): A constructivist perspective, which holds that disorders are conveniently grouped sets of symptoms; a diagnostic perspective, which holds that disorders are latent classes underlying the symptoms; a dimensional perspective, which holds that symptoms measure latent continua; and a causal systems perspective, which holds that disorders are causal networks consisting of symptoms and direct causal relations between them. Advantages and disadvantages of these conceptualizations are discussed. The author concludes that the psychometric analysis of diagnostic systems is not settled, and that these systems require deeper psychometric analysis than they currently receive. © 2008 Wiley Periodicals, Inc. J Clin Psychol 64: 1089–1108, 2008.