Brief Assessment of Schizotypal Traits: A Multinational Study

Fonseca-Pedrero, Eduardo, Ortuño-Sierra, Javier, Lucas-Molina, Beatriz, Debbané, Martin, Chan, Raymond C.K., Cicero, David C., Zhang, Lisa C., Brenner, Colleen, Barkus, Emma, Linscott, Richard J., Kwapil, Thomas, Barrantes-Vidal, Neus, Cohen, Alex, Raine, Adrian, Compton, Michael T., Tone, Erin B., Suhr, Julie, Bobes, Julio, Fumero, Axit, Giakoumaki, Stella, Tsaousis, Ioannis, Preti, Antonio, Chmielewski, Michael, Laloyaux, Julien, Mechri, Anwar, Aymen Lahmar, Mohamed, Wuthrich, Viviana, Larøi, Frank, Badcock, Johanna C., Jablensky, Assen, Barron, David, Swami, Viren, 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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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: ARCHIVED Faculty of Science & Technology (until September 2018)
Depositing User: Viren Swami
Date Deposited: 31 Oct 2017 13:51
Last Modified: 05 May 2022 11:03

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