Table 1.
Clinical Characteristics of the Hallucinating Group
| Mean (SD) | Range of Scores | Approximate Description of the Group Mean Score | |
| Age of onset of hallucinations (y) | 13.3 (11.3) | 4–44 | — |
| Voice frequency rating | 3.6 (1.1) | 2–6 | Voices occur at least once/hour |
| Voice duration rating | 1.9 (0.8) | 1–4 | Voices last for several minutes at a time |
| Voice location rating | 2.0 (1.1) | 1–4 | Voices sound outside the head but close to ears or head |
| Voice loudness rating | 1.9 (0.6) | 1–3 | About the same loudness as own voice |
| Voice origin rating | 3.3 (0.9) | 1–4 | Holds >50% (but<100%) conviction that voices originate from external causes |
| Voice distress rating | 0.2 (0.4) | 0–3 | Voices not distressing at all |
| Voice disruption rating | 0.06 (0.3) | 0–1 | No disruption to life, able to maintain family and social relationships |
| SPQ score | 26.4 (11.4) | 12–54 | Similar to general population mean score (26.9)17 |
| PDI conviction | 15.4 (7.1) | 6–37 | Lower than general population mean score (20.4)18 |
| PDI distress | 4.0 (8.2) | 0–34 | Lower than general population mean score (15.5)18 |
| PDI preoccupation | 16.3 (7.5) | 6–30 | Slightly higher than general population mean score (15.4)18 |
| GAF score | 83.4 (7.2) | 70–95 | Good functioning in all areas, no more than everyday problems |
Note: SPQ, Schizotypal Personality Questionnaire; PDI, Peters Delusion Inventory; GAF, Global Assessment of Function.