Peters et al. Delusions Inventory.
PDI
Multidimensional delusional ideation in the general population: number of delusion-like beliefs endorsed plus, per belief, distress, preoccupation and conviction dimensions
- Length and format
- 40 (PDI-40); 21 (PDI-21 short form). yes/no belief endorsement + three 5-point dimension ratings (distress, preoccupation, conviction) per endorsed item (self-report questionnaire)
- Language versions
- Many incl. DE (PDI-G), ES, FR, ZH, FA (Persian PDI-40), NL and others; widely translated
- Licence
- open with attribution
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- Reference
- Peters, E.R., Joseph, S., Day, S., & Garety, P. (2004). Measuring delusional ideation: the 21-item Peters et al. Delusions Inventory (PDI). Schizophrenia Bulletin, 30(4), 1005-1022.
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