Validation of a spanish version of the schizotypal personality questionnaire (SPQ): psychometric characteristics aand underlying factor structure derived from a healthy university student sample

Rabella, Mireia; Grasa, Eva; Trujols, Joan; Gich, Ignasi; Torrubia, Rafael; Corripio, Iluminada; Pérez Solá, Victor; Riba, Jordi

Validation of a spanish version of the schizotypal personality questionnaire (SPQ): psychometric characteristics aand underlying factor structure derived from a healthy university student sample

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dc.contributor.author Rabella, Mireia
dc.contributor.author Grasa, Eva
dc.contributor.author Trujols, Joan
dc.contributor.author Gich, Ignasi
dc.contributor.author Torrubia, Rafael
dc.contributor.author Corripio, Iluminada
dc.contributor.author Pérez Solá, Victor
dc.contributor.author Riba, Jordi
dc.date.accessioned 2019-06-04T07:28:59Z
dc.date.available 2019-06-04T07:28:59Z
dc.date.issued 2018
dc.description.abstract OBJECTIVE: The need for early detection, prevention and intervention in psychosis has prompted the study of prodromal and threshold syndromes. One strategy involves the assessment of schizotypy, a personality construct involving unusual perceptual experiences, magical thinking or bizarre behavior. Sensitive measurement instruments could potentially allow detection of signs heralding transition to psychosis in high-risk individuals, or risk of relapse in patients after a first psychotic episode. The Schizotypal Personality Questionnaire (SPQ) is a self-report scale, originally developed for English speakers, that covers the nine DSM-IV criteria for schizotypal personality disorder (SPD). Our aim was to validate a Spanish version of the SPQ and assess its psychometric properties. METHODS: The original SPQ was back-translated and administered to university students (n=250). We assessed the internal consistency, the convergent, discriminant and criterion validity of the instrument, and analyzed its factor structure. RESULTS: Our version of the SPQ showed good internal consistency, and convergent (O-LIFE), discriminant (P-scale of EPQ) and criterion validity (SCID-II). Factor analyses supported a four-factor structure in fitting SPQ data. CONCLUSIONS: Our Spanish version of the SPQ questionnaire preserved the psychometric properties of the original questionnaire. This adaptation will provide a useful tool for the early detection of prodromal schizophrenia symptoms and clinical relapse in Spanish-speaking populations.
dc.format.mimetype application/pdf
dc.identifier.citation Rabella M, Grasa E, Trujols J, Gich I, Torrubia R, Corripio I. et al. Validation of a spanish version of the schizotypal personality questionnaire (SPQ): psychometric characteristics aand underlying factor structure derived from a healthy university student sample. Actas Esp Psiquiatr. 2018 Sep;46(5):159-73
dc.identifier.issn 1139-9287
dc.identifier.uri http://hdl.handle.net/10230/41692
dc.language.iso eng
dc.publisher Fundación López Ibor
dc.rights.accessRights info:eu-repo/semantics/openAccess
dc.subject.other Estudiants universitaris -- Salut i higiene
dc.title Validation of a spanish version of the schizotypal personality questionnaire (SPQ): psychometric characteristics aand underlying factor structure derived from a healthy university student sample
dc.type info:eu-repo/semantics/article
dc.type.version info:eu-repo/semantics/publishedVersion

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