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Psychology and Psychotherapy: Research Study

A Pilot Study on Functional Analytic Psychotherapy Group Treatment for Borderline Personality Disorder

Submission: April 05, 2018;Published: October 31, 2018

Volume1 Issue5
October 2018


A randomized clinical trial (RCT) was conducted to test the impact of Functional Analytic Psychotherapy (FAP) on individuals diagnosed with borderline personality disorder (BPD) who had finished treatment as usual (TAU) at a public institution in Mexico City. Two groups receiving 8 sessions of FAP (n=26) or Interpersonal Skills training (n=24) where compared. T-test analyses found statistically significant (p< 0.05) and large (Cohen’s d≥0.80) improvements for FAP group participants at post-test compared to pre-test in BPD symptom severity, intimacy, experience of self and emotion regulation. Between groups analysis found statistically significant and large effects in favor of FAP, with the largest differences observed in intimacy. Regression analysis found a reduction in the relation between intimacy and BPD severity before (R2=0.324) and after FAP treatment (R2=0.11). These results suggest FAP’s possible utility as an adjunct treatment for BPD.

Abbreviations: RCT: Randomized Clinical Trial; BPD: Borderline Personality Disorder; FAP: Functional Analytic Psychotherapy; TAU: Treatment as Usual; FIV: Inflated Variance Factor

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