BACKGROUND: The schizotypal personality disorder is considered as a marker of schizophrenia proneness. The schizotypal personality questionnaire (SPQ) is an instrument to help to the diagnosis of schizotypal personality disorder extensively studied in the literature. aim: To assess psychometric properties (reliability and factor structure) of the Arabic version of the SPQ in a sample of Tunisian university students. method: The sample included 490 students (145 males and 345 females; mean age: 20.4 ± 1.4 years), from the faculty of medicine and the health sciences school of Monastir. Thirty-three students participated in the second assessment of the SPQ three months later. results: Cronbach's (α) internal consistency reliability coefficients were 0.92 for the total SPQ and from 0.62 to 0.75 for the SPQ subscales. The test-retest reliability was good with the intraclass correlation coefficients equal to 0.83 for the total SPQ and from 0.67 to 0.87 for the SPQ subscales (P<0.0001). Factor analysis indicated that the three-factor model (positive or cognitive-perceptual, negative or interpersonal, and disorganized) and the four-factor model (cognitive-perceptual, paranoid, interpersonal, and disorganized) have provided a good fit to the data, accounting for 70.7% and 77.3% of the total variance of the scale, respectively. CONCLUSION: The results showed that the Arabic version of the SPQ had adequate psychometric properties and confirmed the multidimensional structure of the schizotypal personality in nonclinical populations.
BACKGROUND: The schizotypal personality disorder is considered as a marker of schizophrenia proneness. The schizotypal personality questionnaire (SPQ) is an instrument to help to the diagnosis of schizotypal personality disorder extensively studied in the literature. aim: To assess psychometric properties (reliability and factor structure) of the Arabic version of the SPQ in a sample of Tunisian university students. method: The sample included 490 students (145 males and 345 females; mean age: 20.4 ± 1.4 years), from the faculty of medicine and the health sciences school of Monastir. Thirty-three students participated in the second assessment of the SPQ three months later. results: Cronbach's (α) internal consistency reliability coefficients were 0.92 for the total SPQ and from 0.62 to 0.75 for the SPQ subscales. The test-retest reliability was good with the intraclass correlation coefficients equal to 0.83 for the total SPQ and from 0.67 to 0.87 for the SPQ subscales (P<0.0001). Factor analysis indicated that the three-factor model (positive or cognitive-perceptual, negative or interpersonal, and disorganized) and the four-factor model (cognitive-perceptual, paranoid, interpersonal, and disorganized) have provided a good fit to the data, accounting for 70.7% and 77.3% of the total variance of the scale, respectively. CONCLUSION: The results showed that the Arabic version of the SPQ had adequate psychometric properties and confirmed the multidimensional structure of the schizotypal personality in nonclinical populations.
Authors: Eduardo Fonseca-Pedrero; Javier Ortuño; Martin Debbané; Raymond C K Chan; David Cicero; Lisa C Zhang; Colleen Brenner; Emma Barkus; Richard J Linscott; Thomas Kwapil; Neus Barrantes-Vidal; Alex Cohen; Adrian Raine; Michael T Compton; Erin B Tone; Julie Suhr; Felix Inchausti; Julio Bobes; Axit Fumero; Stella Giakoumaki; Ioannis Tsaousis; Antonio Preti; Michael Chmielewski; Julien Laloyaux; Anwar Mechri; Mohamed Aymen Lahmar; Viviana Wuthrich; Frank Larøi; Johanna C Badcock; Assen Jablensky; Adela M Isvoranu; Sacha Epskamp; Eiko I Fried Journal: Schizophr Bull Date: 2018-10-15 Impact factor: 9.306
Authors: Ana L Fernandez-Cruz; Ola Mohamed Ali; Gifty Asare; Morgan S Whyte; Ishan Walpola; Julia Segal; J Bruno Debruille Journal: NPJ Schizophr Date: 2016-10-12