Recent research suggested that personality disorders could be diagnosed as a continuous phenomenon. Therefore, in our study we examined whether the dimensional model of pathological personality traits could be applied to the assessment of borderline personality 1 . participants and procedure For this purpose, we modified an existing measure of borderline personality, the McLean Screening Instrument for Borderline Personality Disorder (MSI-BPD), and scrutinized its psychometric properties (i.e.,

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... reliability, factorial structure, criterion validity). To assess criterion validity we calculated correlations with pathological personality traits. Our sample comprised 354 participants (67.8% women). results Confirmatory factor analysis revealed that the modified MSI-BPD measures borderline personality as a global con-struct, giving one-factor structure. The reliability of the measurement was excellent (α = .90). Moreover, we found positive associations between borderline personality and all five pathological personality traits, which supports the validity of the continuous assessment of borderline personality. conclusions Our findings suggest that the DSM-5 dimensional model may be applied in the assessment of borderline personality.