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Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/35867
- Taxometric analysis supports a dimensional latent structure for schizotypy
- Rawlings, David; Williams, Ben; Haslam, Nick; Claridge, Gordon
- The existence of a discrete class of people vulnerable to schizophrenia spectrum disorders is the most replicated finding of taxometric research. Evidence for such a 'taxon' has been obtained with diverse measures of schizotypy in clinical, high-risk, and normal samples. However, recent demonstrations that skewed indicators of a latent dimension can yield a spuriously taxonic pattern of results may call some of these findings into question. Normal adults (N = 1073) completed measures of positive (perceptual aberration, magical ideation) and negative (physical and social anhedonia) components of schizotypy. Taxometric curves resembled those obtained previously, but when a simulation procedure took skew into account, dimensional models of schizotypy received stronger support than taxonic models for most schizotypy components, with findings for magical thinking inconclusive. A re-evaluation of previous taxonic conclusions regarding the latent structure of schizotypy is indicated.
- Publication type
- Journal article
- Research centre
- Swinburne University of Technology. Faculty of Life and Social Sciences
- Personality and Individual Differences, Vol. 44, no. 8 (Jun 2008), p. 1640-1651
- Publication year
- Dimensionality; Psychosis proneness; Schizotypy; Taxometric analysis; Taxon
- Publisher URL
- Copyright © 2008 Elsevier B.V. All rights reserved.
- Peer reviewed