The validity of the Schizotypal Personality Questionnaire in a Greek sample: Tests of measurement invariance and latent mean differences

Comprehensive Psychiatry
Ioannis TsaousisStella G Giakoumaki

Abstract

The Schizotypal Personality Questionnaire (SPQ) is a widely used scale for measuring schizotypal characteristics modeled on DSM-III-R criteria for schizotypal personality disorder (SPD). The aim of this study was to examine the factorial structure of the Greek SPQ, its factorial invariance across gender and different age groups and possible gender and age group differences at latent mean level. Eight hundred sixty-five community participants completed the Greek version of the SPQ. With regard to the factorial structure of the original first-order model, the results showed that a seven-factor model (sub-scales "no close friends" with "constricted affect" and "ideas of reference" with "unusual perceptual experiences" were combined) was replicated adequately. Furthermore, the second-order "paranoid" model provided also adequate fit. With regard to the factorial invariance of the SPQ across gender and age, the analysis revealed that both, the first- and second-order models showed measurement invariance (configural, metric and structural) across gender and age groups (17-35 vs. 36-70). Latent mean differences across gender and age groups were also found. Based on these findings, we can conclude that the Greek version of the SPQ is a...Continue Reading

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Citations

Apr 28, 2016·Scandinavian Journal of Psychology·Stella G Giakoumaki
Jul 18, 2016·Comprehensive Psychiatry·Marco GarzittoPaolo Brambilla
Jun 14, 2016·Journal of Clinical and Experimental Neuropsychology·Leda KaragiannopoulouStella G Giakoumaki
Oct 23, 2016·Comprehensive Psychiatry·Chrysoula ZourarakiStella G Giakoumaki
Jul 6, 2017·Asia-Pacific Psychiatry : Official Journal of the Pacific Rim College of Psychiatrists·David BarronViren Swami
Jul 18, 2017·Psychological Medicine·E Fonseca-PedreroA Jablensky
Apr 7, 2017·Archives of Clinical Neuropsychology : the Official Journal of the National Academy of Neuropsychologists·Chrysoula ZourarakiStella G Giakoumaki
Apr 24, 2018·Schizophrenia Bulletin·Eduardo Fonseca-PedreroEiko I Fried
Jun 17, 2020·Cognitive Neuropsychiatry·Stella G GiakoumakiPanos Bitsios
Dec 30, 2020·Scandinavian Journal of Psychology·Stella G GiakoumakiChrysoula Zouraraki
Jan 26, 2021·Frontiers in Psychiatry·Penny KaramaounaStella G Giakoumaki
Nov 26, 2021·The British Journal of Clinical Psychology·Emiliana ToniniMelissa J Green

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