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

Elahi, A. and Perez Algorta, Guillermo Daniel and Varese, F. and McIntyre, J.C. and Bentall, R.P. (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

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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.

Item Type: Journal Article
Journal or Publication Title: Schizophrenia Research
Uncontrolled Keywords: /dk/atira/pure/subjectarea/asjc/2800/2803
Departments: Faculty of Health and Medicine > Health Research
ID Code: 85098
Deposited By: ep_importer_pure
Deposited On: 07 Mar 2017 13:06
Refereed?: Yes
Published?: Published
Last Modified: 19 Feb 2020 03:44

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