The Comparison of the effectiveness of dialectical behavior therapy and mentalization-based therapy in improving the symptoms of people with borderline personality disorder

The present study aimed to compare the effectiveness of dialectical behavior therapy and mentalization-based therapy in improving the symptoms of people with a borderline personality disorder. The current research was with a pre-test-post-test design and a control group with a follow-up period of 1 month. The statistical population of this research was all the treatment seekers suffering from borderline personality disorder who had been referred to the psychological clinics of Urmia city in 1400, of which 45 people were selected by available sampling method and were randomly divided into two experimental groups and one control group. The first group received dialectical behavior therapy and the second group received mentalization-based therapy for 12 one-hour sessions, and the control group did not receive training. The borderline personality scale (STB, Leishnernig, 1999) was used to collect data. For statistical analysis, analysis of variance with repeated measures was used. The findings showed that dialectical behavior therapy and treatment based on mentalization are effective in improving the symptoms of borderline personality disorder and this effect was stable in the follow-up phase as well (P<0.01). Also, the results of the Benferroni post hoc test showed that dialectical behavior therapy had a greater effect on improving the symptoms of borderline personality disorder (P<0.05). The results indicate more use of dialectical behavior therapy intervention to improve symptoms of borderline personality disorder.