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Measuring psychosis proneness in a nonclinical Korean population: is the Peters et al Delusions Inventory useful for assessing high-risk individuals?

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dc.contributor.authorJung, Hee Yeon-
dc.contributor.authorChang, Jae Seung-
dc.contributor.authorYi, Jung Seo-
dc.contributor.authorHwang, Samuel-
dc.contributor.authorShin, Hyun-Kyun-
dc.contributor.authorKim, Jong Hoon-
dc.contributor.authorCho, In Hee-
dc.contributor.authorKim, Yong Sik-
dc.date.accessioned2010-04-19T01:07:36Z-
dc.date.available2010-04-19T01:07:36Z-
dc.date.issued2008-02-05-
dc.identifier.citationCompr Psychiatry. 2008 ;49(2):202-10.en
dc.identifier.issn0010-440X (Print)-
dc.identifier.urihttp://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=18243895-
dc.identifier.urihttps://hdl.handle.net/10371/63317-
dc.description.abstractOBJECTIVES: We examined the psychometric properties of the Korean version of the Peters et al Delusions Inventory (PDI) 40 and investigated the distribution of delusional ideation in a nonclinical population. We also used the item response theory to evaluate the usefulness of the PDI in measuring the risk for psychosis. METHODS: A total of 310 nonclinical individuals completed the Korean PDI-40, the Magical Ideation Scale (MIS), and the Schizotypal Personality Scale (STA). In addition, 60 psychotic inpatients with delusions completed the PDI-40. Among 310 individuals, 124 participated in a follow-up study 6 months after completing their original questionnaire. RESULTS: The PDI-40 revealed a slightly skewed distribution, but the score range was similar to that of the British population. Scores were negatively correlated with age, but no sex differences were found. The Korean PDI-40 exhibited good internal consistency and test-retest reliability. The PDI was significantly correlated with the MIS and the STA. Ten components were extracted through a principal component analysis with varimax rotation. The test results using item response theory revealed 39 items as the items which individuals with very high level of psychosis proneness will answer as "yes." Moreover, all items yielded "above moderate" discrimination in terms of psychosis proneness. CONCLUSIONS: We confirmed the reliability and validity of the Korean PDI-40. The usefulness of the PDI-40 in a nonclinical population was replicated in the Korean sample. The PDI-40 can be used as an informative device when investigating "psychosis proneness" in a group at high risk for psychosis.en
dc.language.isoenen
dc.publisherElsevieren
dc.subjectAdolescenten
dc.subjectAdulten
dc.subjectAgeden
dc.subjectAsian Continental Ancestry Group/*ethnologyen
dc.subjectDelusions/*diagnosis/*ethnologyen
dc.subjectFemaleen
dc.subjectHumansen
dc.subjectMaleen
dc.subjectMiddle Ageden
dc.subjectPrevalenceen
dc.subjectPsychotic Disorders/*diagnosis/*ethnology/psychologyen
dc.subject*Questionnairesen
dc.subjectRisk Factorsen
dc.subjectSeverity of Illness Indexen
dc.titleMeasuring psychosis proneness in a nonclinical Korean population: is the Peters et al Delusions Inventory useful for assessing high-risk individuals?en
dc.typeArticleen
dc.contributor.AlternativeAuthor정희연-
dc.contributor.AlternativeAuthor장재승-
dc.contributor.AlternativeAuthor이정서-
dc.contributor.AlternativeAuthor황사무엘-
dc.contributor.AlternativeAuthor신현균-
dc.contributor.AlternativeAuthor김종훈-
dc.contributor.AlternativeAuthor조인희-
dc.contributor.AlternativeAuthor김용식-
dc.identifier.doi10.1016/j.comppsych.2007.08.011-
Appears in Collections:
College of Medicine/School of Medicine (의과대학/대학원)Psychiatry (정신과학전공)Journal Papers (저널논문_정신과학전공)
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