The study of factor structure, validity, reliability and standardization of borderline personality scale (STB) in Shiraz University Students

Document Type : Research Paper

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Abstract

The borderline traits scale (STB) was developed at Oxford by Claridge and Broks (1984). As outlined in detail in Claridge and Broks, STB scale was based on the criteria for borderline personality disorder, and was set out in the Diagnostic and Statistical Manual –3rd edition (DSM-III; American Psychiatric Association, 1980). Recently this scale was revised by Rawlings et al (2001). In this study STB corresponded with DSM-IV-TR’s criteria for borderline personality disorder. This scale represented one form of a more general ‘borderline’ condition, referring to unstable modes of interpersonal responding, including ambivalence and degree of control of emotional expression. This scale investigates borderline characteristics of normal population on the base of continuity view of psychotic characteristics. The aim of this study was to investigate psychometric properties and standardization of borderline personality scale (STB).
Methods and Materials: A group of 749 normal participants (380 male and 369 female from collages of Shiraz University) and 60 patients (30 with schizophrenia and 30 with major depression disorders) took part in this research.
Results: Principal Component Analysis with promax rotation for STB, extracted three factors which were labeled hopelessness, impulsivity and stress related paranoid/dissociative symptoms factors respectively. However for this scale three other types of validity (concurrent validity, differential validity and correlation between subscales and the whole scale and among subscales) and three reliability (test retest, internal constancy and half splitting reliabilities) were reported.
Conclusions: Based on these results, it was concluded that STB scale contain good psychometric properties in Iranian population and it be can used, as valid measure, in psychological and psychiatric researches. Finally the result of this study showed standardized information for STB with sample of 749 participants.

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Journal of Fundamentals of Mental Health
Volume 7, Issue 28 - Serial Number 28
January and February 2006
Pages 75-89

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