Guillén V, Tormo ME, Fonseca-Baeza S, et al. - The present study was performed to explore if people with Borderline Personality Disorder (BPD) have worse Quality of Life (QoL) than the non-clinical population, to evaluate if there are statistically significant differences between Dialectical Behavioural Therapy (DBT), Systems Training for Emotional Predictability and Problem Solving (STEPPS), or Cognitive Behavioural Therapy-Treatment at Usual (CBT-TAU) in the improvement of QoL, to investigate if participants show clinically significant improvements in QoL after treatment, to test if resilience is associated with QoL before and after the BPD treatment and to examine whether resilience is a predictor of QoL at pretreatment and posttreatment. A total of 403 individuals were included in this study (n = 202 participants diagnosed with BPD and n = 201 non-clinical). Researchers conducted the clinical participants received one of these possible treatments, DBT, STEPPS, or CBT-TAU. MANOVA and regression analyses. This is a need to evaluate QoL and Resilience in studies on psychotherapy with BPD patients.