Table 5.
Symptoms Counts, DSM Diagnostic Categories, Latent Trait (θ) Scores, and PPOD Indices
| Symptom Count | DSM Diagnosis | θ Range | PPOD Index Rangea |
|---|---|---|---|
| 8 (n = 23) | YES | 1.373 | > .99 |
| 7 (n = 25) | YES | 0.662 to 1.318 | > .99 |
| 6 (n = 25) | YES | 0.230 to 0.555 | .93 to .98 |
| 5 (n = 30) | YES | −0.025 to 0.251 | .82 to .94 |
| 4 (n = 44) | YES | −0.376 to −0.037 | .50 to .81 |
| 3 (n = 39) | NO | −0.670 to −0.384 | .23 to .50 |
| 2 (n = 46) | NO | −0.965 to −0.679 | .08 to .21 |
| 1 (n = 45) | NO | −1.290 to −1.062 | .03 to .06 |
| 0 (n = 44) | NO | −1.693 | .01 |
a
estimated using Method A (standard normal cumulative distribution function)