Scale detailed in Haddock, McCarron, Tarrier & Faragher. (1999).
All items are scored 0–4, according to general criteria:
0 No problem
1 Minimal or occasional
2 Minor to moderate
3 Major
4 Maximum severity
Each item is scored according to detailed anchor
points, e.g.:
Amount Of Preoccupation With Delusions.
0 No delusions, or delusions which the subject thinks about less than once a week
1 Subject thinks about beliefs at least once a week.
2 Subject thinks about beliefs at least once a day.
3 Subject thinks about beliefs at least once an hour.
4 Subject thinks about delusions continuously or almost continuously.
Delusion Subscale:
Item 1: Amount Of Preoccupation With Delusions
Item 2: Duration of Preoccupation with Delusions
Item 3: Conviction
Item 4: Amount of Distress
Item 5: Intensity of Distress
Item 6: Disruption to Life Caused by Beliefs
Auditory Hallucinations Subscale:
Item 1: Frequency
Item 2: Duration
Item 3: Location
Item 4: Loudness
Item 5: Beliefs Re Origin of Voices
Item 6: Amount of Negative Content of Voices
Item 7: Degree of Negative Content
Item 8: Amount of Distress
Item 9: Intensity of Distress
Item 10: Disruption to Life Caused by Voices
Item 11: Controllability of Voices