Dimensional structure and measurement invariance of the schizotypal personality questionnaire - Brief revised (SPQ-BR) scores across American and Spanish samples

  1. Fonseca-Pedrero, E. 125
  2. Cohen, A. 3
  3. Ortuño-Sierra, J. 2
  4. de Álbeniz, A.P. 2
  5. Muñiz, J. 14
  1. 1 Center for Biomedical Research in the Mental Health Network (CIBERSAM), Oviedo, Spain
  2. 2 Universidad de La Rioja
    info

    Universidad de La Rioja

    Logroño, España

    ROR https://ror.org/0553yr311

  3. 3 Louisiana State University
    info

    Louisiana State University

    Baton Rouge, Estados Unidos

    ROR https://ror.org/05ect4e57

  4. 4 Universidad de Oviedo
    info

    Universidad de Oviedo

    Oviedo, España

    ROR https://ror.org/006gksa02

  5. 5 Oviedo, Spain
Revista:
Journal of Personality Disorders

ISSN: 0885-579X

Año de publicación: 2017

Volumen: 31

Número: 4

Páginas: 522-541

Tipo: Artículo

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DOI: 10.1521/PEDI_2016_30_266 SCOPUS: 2-s2.0-85028300647 WoS: WOS:000408599100006 GOOGLE SCHOLAR

Otras publicaciones en: Journal of Personality Disorders

Objetivos de desarrollo sostenible

Resumen

The main goal of the present study was to test the measurement equivalence of the Schizotypal Personality Questionnaire-Brief Revised (SPQBR) scores in a large sample of Spanish and American non-clinical young adults. The sample was made up of 5,625 young adults (M = 19.65 years; SD = 2.53; 38.5% males). Study of the internal structure, using confirmatory factor analysis (CFA), revealed that SPQ-BR items were grouped in a theoretical internal structure of nine first-order factors. Moreover, three or four second-order factor and bifactor models showed adequate goodnessof-fit indices. Multigroup CFA showed that the nine lower-order factor models of the SPQ-BR had configural and weak measurement invariance and partial strong measurement invariance across country. The reliability of the SPQ-BR scores, estimated with omega, ranged from 0.67 to 0.91. Using the item response theory framework, the SPQ-BR provides more accurate information at the medium and high end of the latent trait. Statistically significant differences were found in the raw scores of the SPQ-BR subscales and dimensions across samples. The American group scored higher than the Spanish group in all SPQ-BR domains except Ideas of Reference and Suspiciousness. The finding of comparable factor structure in cross-cultural samples would lend further support to the continuum model of psychosis spectrum disorders. In addition, these results provide new information about the factor structure of schizotypal traits and support the validity and utility of this measure in cross-cultural research. © 2017 The Guilford Press.