Brief Assessment of Schizotypal Traits: A Multinational Study

Fonseca-Pedrero, Eduardo and Ortuño-Sierra, Javier and Lucas-Molina, Beatriz and Debbané, Martin and Chan, Raymond C.K. and Cicero, David C. and Zhang, Lisa C. and Brenner, Colleen and Barkus, Emma and Linscott, Richard J. and Kwapil, Thomas and Barrantes-Vidal, Neus and Cohen, Alex and Raine, Adrian and Compton, Michael T. and Tone, Erin B. and Suhr, Julie and Bobes, Julio and Fumero, Axit and Giakoumaki, Stella and Tsaousis, Ioannis and Preti, Antonio and Chmielewski, Michael and Laloyaux, Julien and Mechri, Anwar and Aymen Lahmar, Mohamed and Wuthrich, Viviana and Larøi, Frank and Badcock, Johanna C. and Jablensky, Assen and Barron, David and Swami, Viren and Tran, Ulrich S. and Voracek, Martin (2018) Brief Assessment of Schizotypal Traits: A Multinational Study. Schizophrenia Research, 197. pp. 182-191. ISSN 1573-2509

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Official URL: https://doi.org/10.1016/j.schres.2017.10.043

Abstract

The Schizotypal Personality Questionnaire-Brief (SPQ-B) was developed with the aim of examining variations in healthy trait schizotypy, as well as latent vulnerability to psychotic-spectrum disorders. No previous study has studied the cross-cultural validity of the SPQ-B in a large cross-national sample. The main goal of the present study was to analyze the reliability and the internal structure of SPQ-B scores in a multinational sample of 28,426 participants recruited from 14 countries. The mean age was 22.63 years (SD = 7.08; range 16-68 years), 37.7% (n = 10,711) were men. The omega coefficients were high, ranging from 0.86 to 0.92 for the total sample. Confirmatory factor analysis revealed that SPQ-B items were grouped either in a theoretical structure of three first-order factors (Cognitive-Perceptual, Interpersonal, and Disorganized) or in a bifactor model (three first-order factors plus a general factor of schizotypal personality). In addition, the results supported configural but not strong measurement invariance of SPQ-B scores across samples. These findings provide new information about the factor structure of schizotypal personality, and support the validity and utility of the SPQ-B, a brief and easy tool for assessing self-reported schizotypal traits, in cross-national research. Theoretical and clinical implications for diagnostic systems, psychosis models, and cross-national mental health strategies are derived from these results.

Item Type: Journal Article
Keywords: Schizotypy, Schizotypal personality, Psychosis, Cross-cultural, SPQ-B, Psychosis risk
Faculty: Faculty of Science & Technology
Depositing User: Viren Swami
Date Deposited: 31 Oct 2017 13:51
Last Modified: 04 Nov 2018 02:02
URI: http://arro.anglia.ac.uk/id/eprint/702400

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