Standardization of the Persian version of the self-report personality questionnaire (SCID-5-SPQ) in a clinical sample of Iranian population

Background and Aim: This study was conducted to investigate the psychometric characteristics of the Persian version of the self-report personality questionnaire (SCID-5-SPQ) in the clinical sample in Tehran. Method: This is a descriptive and survey study. The present study population includes outpatients and inpatients referred to three centers in Tehran, including Iran Psychiatric Medical Center, Hazrat Rasool Akram Educational and Medical Complex and the Clinic of the Faculty of Behavioral Sciences andMental Health (Tehran Psychiatric Institute). Sampling in this study was performed in Convenience Sampling manner. In this study, in addition to the demographic questionnaire, the Persian version of the Structured clinical interview for the DSM-5 (SCID-5) and the self-report personality questionnaire (SCID-5-SPQ) were used. Finally, in order to evaluate the information, formal and convergent validity methods, internal reliability and comparative tests were used. Results: The SCID-5-SPQ have a good formal narrative. A study of the convergent validity of this questionnaire with SCID interview showed that all subscales had a significant positive correlation (P≥0.001). Also, the reliability of the questionnaire was 0.93, and therefore the Persian version of this questionnaire is considered a stable tool. Conclusion: According to the findings of the present study, SCID-5-SPQ is a more stable tool and can be used in psychiatric clinics and hospitals as a screening tool for personality disorders alone or in addition to interviews.