Table 9.
Slopes and Item Biserial Correlation for General Psychopathology Subscale
| Items | Slopes | Rank of Slopes | Item biserial correlation |
|---|---|---|---|
| G2.Anxiety | 0.481 | 1 | 0.565 |
| G14.Poor Impulse control | 0.442 | 2 | 0.604 |
| G4.Tension | 0.437 | 3 | 0.630 |
| G6.Depression | 0.437 | 4 | 0.600 |
| G9.Unusual Thought Content | 0.437 | 5 | 0.605 |
| G8.Uncooperative | 0.431 | 6 | 0.617 |
| G13.Disturbance of Volition | 0.426 | 7 | 0.601 |
| G1.Somatic Concern | 0.395 | 8 | 0.541 |
| G7.Motor Retardation | 0.382 | 9 | 0.606 |
| G10.Disorientation | 0.382 | 10 | 0.441 |
| G3.Guilt Feelings | 0.377 | 11 | 0.431 |
| G11.Poor Attention | 0.377 | 12 | 0.567 |
| G15.Preoccupation | 0.377 | 13 | 0.438 |
| G16.Active Social Avoidance | 0.377 | 14 | 0.366 |
| G5. Mannerisms and Posturing | 0.373 | 15 | 0.463 |
| G12.Lack of Judgment/Insight | 0.350 | 16 | 0.381 |
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 G4 is
0.436681, slope of G6 is 0.436586, slope of G9 is 0.436546; slope of G7 is 0.381679, and slope for G10 is 0.381534; slopes for G3, G11, G15 and G16 are 0.377358, 0.377287, 0.377145, and 0.377003, respectively).