Elahi, A., Perez Algorta, G., Varese, F. et al. (2 more authors) (2017) Do paranoid delusions exist on a continuum with subclinical paranoia? A multi-method taxometric study. Schizophrenia Research, 190. pp. 77-81. ISSN 0920-9964
Abstract
Background There is widespread interest in whether psychosis exists on a continuum with healthy functioning. Previous research has implied that paranoia, a common symptom of psychosis, exists on a continuum but this has not been investigated using samples including both patients and non-patients and up-to-date taxometric methods.
Aim To assess the latent structure of paranoia in a diverse sample using taxometric methods.
Method We obtained data from 2836 participants, including the general population as well as at-risk mental state and psychotic patients using the P-scale of the Paranoia and Deservedness Scale. Data were analysed using three taxometric procedures, MAMBAC, MAXEIG and L-MODE (Ruscio, 2016), and two sets of paranoia indicators (subscales and selected items from the P scale), including and excluding the patient groups.
Results Eleven of the twelve analyses supported a dimensional model. Using the full sample and subscales as indicators, the MAMBAC analysis was ambiguous. Overall, the findings converged on a dimensional latent structure.
Conclusions A dimensional latent structure of paranoia implies that the processes involved in sub-clinical paranoia may be similar to those in clinical paranoia.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2017 Elsevier B.V. This is an open access article under the CC BY license(http://creativec ommons.org/licenses/by/4.0/). |
Keywords: | Paranoia; Taxometrics; Dimensional; MAMBAC; MAXEIG; L-MODE |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Science (Sheffield) > Department of Psychology (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 11 Oct 2018 12:20 |
Last Modified: | 11 Oct 2018 12:20 |
Published Version: | https://doi.org/10.1016/j.schres.2017.03.022 |
Status: | Published |
Publisher: | Elsevier |
Refereed: | Yes |
Identification Number: | 10.1016/j.schres.2017.03.022 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:135797 |