Table 5.
Slopes and Item Biserial Correlation for Each Item of the PANSS
| Items | Slopes | Rank of Slopes | Item biserial correlation |
|---|---|---|---|
| P3. Hallucinatory behaviour | 0.510 | 1 | 0.760 |
| P5. Grandiosity | 0.495 | 2 | 0.673 |
| P1. Delusions | 0.495 | 3 | 0.686 |
| P4. Excitement | 0.467 | 4 | 0.617 |
| P2. Conceptual Disorganization | 0.455 | 5 | 0.670 |
| P6. Suspiciousness/Persecution | 0.410 | 6 | 0.650 |
| P7. Hostility | 0.382 | 7 | 0.553 |
Note. Slopes were extracted from TestGraf output and were rounded to three decimal
places. Similarities in the values of slopes are due to rounding (e.g. slope of P1 is
0.495090, slope of P5 is 0.495447).