• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar

information for practice

news, new scholarship & more from around the world


advanced search
  • gary.holden@nyu.edu
  • @ Info4Practice
  • Archive
  • About
  • Help
  • Browse Key Journals
  • RSS Feeds

The psychometric properties of the Peters et al. Delusions Inventory (PDI) in Taiwan: reliability, validity, and utility

Abstract

Purpose  

The Peters et al. Delusions Inventory (PDI) is a commonly used instrument to measure delusion proneness in the general population
and includes dimensions that measure distress, preoccupation, and conviction of unusual beliefs. This self-report scale has
already been translated into several languages. However, there has not been a validated Taiwanese version previously reported.
The aims of the present study were to translate and test the cross-cultural reliability and validity of the PDI in Taiwanese
as well as to establish its sensitivity, specificity, and discriminative validity.

Methods  

We administered the questionnaire to a consecutive sample of 253 participants with (n = 154; clinical group including schizophrenia and affective psychosis) or without psychotic disorders (n = 99; non-clinical group). In addition to the Taiwanese version of the PDI (PDI-T), the Taiwanese version of the Brief Psychiatric
Symptom Rating Scale (BSRS) was used to measure the severity of psychopathology. We tested the psychometric properties of
the PDI-T, including its construct validity, internal consistency, test–retest reliability, concurrent, and discriminative
validity.

Results  

Overall, the PDI-T showed good construct validity, internal consistency, and stability over time, and it was significantly
correlated with the BSRS subscales of psychotic symptoms. The convergent and discriminative validity was satisfactory. The
area under the receiver operating characteristic curve of the PDI-T was 0.752. This research found that the most appropriate
PDI-T yes/no cut-off scores for determining the absence and presence of delusion proneness were 5 and 13.

Conclusions  

The PDI is a reliable and valid instrument for measuring the dimensionality of delusion proneness and appears to complement
subclinical psychosis assessment scales for both epidemiological and clinical research in Taiwan.

  • Content Type Journal Article
  • Category Original Paper
  • Pages 1-14
  • DOI 10.1007/s00127-011-0428-y
  • Authors
    • Yu-Chen Kao, Department of Psychiatry, Songshan Armed Forces General Hospital, Taipei, Taiwan, ROC
    • Tzong-Shi Wang, Department of Psychiatry, Taipei Tzu Chi General Hospital, New Taipei City, Taiwan, ROC
    • Chien-Wen Lu, Department of Psychiatry, Songshan Armed Forces General Hospital, Taipei, Taiwan, ROC
    • Tsung-Hsing Cheng, Department of Family Medicine, Songshan Armed Forces General Hospital, Taipei, Taiwan, ROC
    • Yia-Ping Liu, Department of Physiology, National Defense Medical Center, No. 161, Section 6, Min-Chuan East Road, 114 Taipei, Taiwan, ROC
    • Journal Social Psychiatry and Psychiatric Epidemiology
    • Online ISSN 1433-9285
    • Print ISSN 0933-7954
Posted in: Journal Article Abstracts on 08/24/2011 | Link to this post on IFP |
Share

Primary Sidebar

Categories

Category RSS Feeds

  • Calls & Consultations
  • Clinical Trials
  • Funding
  • Grey Literature
  • Guidelines Plus
  • History
  • Infographics
  • Journal Article Abstracts
  • Meta-analyses - Systematic Reviews
  • Monographs & Edited Collections
  • News
  • Open Access Journal Articles
  • Podcasts
  • Video

© 1993-2023 Dr. Gary Holden. All rights reserved.

gary.holden@nyu.edu
@Info4Practice