“…One study showed a moderate effect size for attitude towards personality disorder generally (Polnay et al, 2015), and one showed a moderate effect size for attitudes towards BPD (Knaak et al, 2015). The remaining studies all showed significant improvements with small effect sizes post-intervention (Clark, Fox, & Long, 2015;Commons-Treloar & Lewis, 2008;Keuroghlian et al, 2016;Krawitz, 2004;Maltman & Hamilton, 2011;Shanks et al, 2011;Welstead et al, 2018), or significant improvements with unknown effect sizes (Ebrahim et al, 2016). Non-significant findings were shown for empathic concern in one study that targeted attitudes towards BPD in a forensic setting (Clark, Fox, & Long, 2015).…”