Do paranoid delusions exist on a continuum with subclinical paranoia? A multi-method taxometric study

Elahi, A, Algorta, G Perez, Varese, F, McIntyre, JC ORCID: 0000-0002-5601-524X and Bentall, RP
(2017) Do paranoid delusions exist on a continuum with subclinical paranoia? A multi-method taxometric study. SCHIZOPHRENIA RESEARCH, 190. pp. 77-81.

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<h4>Background</h4>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.<h4>Aim</h4>To assess the latent structure of paranoia in a diverse sample using taxometric methods.<h4>Method</h4>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.<h4>Results</h4>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.<h4>Conclusions</h4>A dimensional latent structure of paranoia implies that the processes involved in sub-clinical paranoia may be similar to those in clinical paranoia.

Item Type: Article
Uncontrolled Keywords: Paranoia, Taxometrics, Dimensional, MAMBAC, MAXEIG, L-MODE
Depositing User: Symplectic Admin
Date Deposited: 06 Apr 2017 06:28
Last Modified: 19 Jan 2023 07:07
DOI: 10.1016/j.schres.2017.03.022
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