Objective: This study evaluated the effectiveness of the Dialectical Behavior Therapy Skills Training Group (DBT-ST) component of DBT. Method: Participants (N = 114) attended an 18-20-week DBT-ST. The study utilized a quasi-experimental design with a within-persons control group for a measure of borderline personality disorder (BPD) symptoms (at referral), and emergency department (ED) presentations, and psychiatric bed-days (both assessed for 6 months pre-and post-intervention). Primary outcomes were the number of BPD symptoms, psychological distress, depression, rate of ED presentations, and psychiatric inpatient bed-days.Results: After completing DBT-ST, participants had reduced BPD symptoms, psychological distress, and depression (p < 0.001). The waitlist control group showed no improvement in BPD symptoms (p = 0.085). The rate of ED presentations was reduced (p = 0.001). There was no reduction in psychiatric inpatient bed-days (p = 0.160), likely due to insufficient power.Conclusions: DBT-ST participation in addition to treatment-as-usual is an effective treatment for people with BPD.

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Attention bias is common in adults with post‐traumatic stress disorder (PTSD) but is less studied in children. Children (n = 22) who experienced a potentially distressing procedure in an outpatient clinic (removal of K‐wires from orthopaedic fractures) and a group of medically unwell children (illness group; n = 27) were compared with healthy controls (n = 32). Children's baseline level of PTS symptoms were indexed prior to the medical procedure, and again at 1‐week follow‐up. Immediately after the K‐wire removal, children completed a dot probe task using two categories of target words (medical threatening and emotionally threatening). While K‐wire children showed an overall bias away from negative words relative to healthy controls, the illness group did not significantly differ from healthy controls. Attention bias in K‐wire and illness groups was unrelated to later PTS symptoms.