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Toward scientifically useful quantitative models of psychopathology: The importance of a comparative approach

Published online by Cambridge University Press:  29 June 2010

Robert F. Krueger
Department of Psychology, Washington University, St. Louis, MO 63130-4899.
Colin G. DeYoung
Department of Psychology, University of Minnesota–Twin Cities, Minneapolis, MN 55455-0344.
Kristian E. Markon
Department of Psychology, University of Iowa, Iowa City, IA 52242.


Cramer et al. articulate a novel perspective on comorbidity. However, their network models must be compared with more parsimonious latent variable models before conclusions can be drawn about network models as plausible accounts of comorbidity. Latent variable models have proven generative in studying psychopathology and its external correlates, and we doubt network models will prove as useful for psychopathology research.

Open Peer Commentary
Copyright © Cambridge University Press 2010

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