Measurement invariance of the Schizotypal Personality Questionnaire-Brief across gender and age

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• 作者：Eduardo  ; Fonseca-Pedrero ; Mercedes  ; Paino ; Serafí ; n  ; Lemos-Girá ; ldez ;   ; ^{slemos@uniovi.es} ; Susana  ; Sierra-Baigrie ; José ;   ; Muñ ; iz
• 关键词：Schizotypal ; Schizotypy ; SPQ-B ; Psychometric properties ; Invariance ; Psychosis-proneness
• 刊名：Psychiatry Research
• 出版年：2011
• 出版时间：30 December 2011
• 年：2011
• 卷：190
• 期：2-3
• 页码：309-315
• 全文大小：211 K

文摘

The purpose of this study was to examine the dimensional structure and measurement invariance of the Schizotypal Personality Questionnaire-Brief (SPQ-B) (Raine and Benishay, 1995) across sex and age in a representative sample of nonclinical adolescents and young adults. The sample consisted of 1789 adolescents and young adults (42.1 % males), with a mean age of 17.1 years (S.D. = 2.9). The results indicated that the Likert version of the SPQ-B showed adequate psychometric properties (¦Á total score 0.89). The schizotypal personality models that presented the best fit indices were Raine et al.'s (1994) three-factor model and Stefanis et al.'s (2004) four-factor model. In addition, the results support the measurement invariance of the SPQ-B across sex and age. When the latent means of the schizotypal dimensions were compared across sex and age, statistically significant differences were found. Consistent with previous literature, schizotypal personality is a multidimensional construct whose structure appears invariant across sex and age. Future studies should examine the invariance of schizotypal personality across cultures, as well as using the SPQ-B as a screening method in the general population to detect individuals at risk for schizophrenia-spectrum disorders, given its rapid and easy administration.