Demographics and clinical symptom scores (mean ± SD).

<p>Gender and handedness were evaluated using a Pearson Chi-square test. One-way analysis of variance (ANOVA) with posthoc Bonferroni pairwise comparisons was used to assess differences in age, predicted IQ, HDRS, K10 and DASS. The age of onset of psychosis, duration of illness and BPRS scores was assessed using independent-samples <i>t</i>-tests. Significance levels were set at <i>p</i><.05 (2-tailed). BPRS, Brief Psychiatric Ratings Scale; DASS, Depression Anxiety and Stress Scales; HDRS, Hamilton Depression Rating Scale; K10, Kessler-10; SD, standard deviation.</p><p>Demographics and clinical symptom scores (mean ± SD).