“…Positive and Negative Syndrome Scale (PANSS) (Kay, Fiszbein, & Opler, 1987), a 30-item rating scale that assesses overall, positive, negative, cognitive and emotional discomfort symptom subscales. In addition to use among those with prolonged psychosis (Luther et al, 2015;Lysaker, Bell, Bioty, & Zito, 1995), the PANSS has also been widely used in studies with those experiencing early phase psychosis (Emsley et al, 2003;Perkins, Gu, Boteva, & Lieberman, 2005), and good factor structure, internal consistency and construct validity has been established for each of the domains of symptoms included in our study (Bell, Lysaker, Milstein, & Beam-Goulet, 1994). In both the prolonged and early phase psychosis samples, the PANSS was administered by research assistants who had received training in PANSS administration and scoring and who had been trained to an inter-rater reliability of at least 0.7.…”