| The prodromal questionnaire (PQ): preliminary validation of a self-report screening measure for prodromal and psychotic syndromes. | |
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MedLine Citation:
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PMID: 16276559 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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This study aims to establish preliminary validity of the Prodromal Questionnaire (PQ), a 92-item self-report screening measure for prodromal and psychotic symptoms. Adolescents and young adults (N = 113) referred to a prodromal psychosis research clinic completed the PQ and the Structured Interview for Prodromal Syndromes (SIPS [Miller, T.J., McGlashan, T.H., Woods, S.W., Stein, K., Driesen, N., Corcoran, C.M., Hoffman, R., Davidson, L., 1999. Symptom assessment in schizophrenic prodromal states. Psychiatric Quarterly 70(4), 273-287]), an interview with established validity for predicting future psychosis. When maximizing selection of true positive cases, scores on a subset of PQ items that assess positive symptoms predicted a concurrent prodromal or psychotic SIPS diagnosis with 90% sensitivity and 49% specificity. The PQ shows good preliminary validity in detecting individuals with an interview-diagnosed prodromal or psychotic syndrome, but it is less sensitive to the threshold between prodromal and full-blown psychosis. |
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Authors:
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Rachel L Loewy; Carrie E Bearden; Jennifer K Johnson; Adrian Raine; Tyrone D Cannon |
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Publication Detail:
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Type: Journal Article; Validation Studies |
Journal Detail:
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Title: Schizophrenia research Volume: 79 ISSN: 0920-9964 ISO Abbreviation: Schizophr. Res. Publication Date: 2005 Nov |
Date Detail:
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Created Date: 2005-11-07 Completed Date: 2006-02-24 Revised Date: 2010-09-02 |
Medline Journal Info:
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Nlm Unique ID: 8804207 Medline TA: Schizophr Res Country: Netherlands |
Other Details:
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Languages: eng Pagination: 117-25 Citation Subset: IM |
Affiliation:
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Department of Psychology, University of California, Los Angeles, 1285 Franz Hall. Box 951563, Los Angeles, CA 90095-1563, USA. rloewy@ucla.edu |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Adult Child Female Humans Male Mass Screening / methods* Observer Variation Prevalence Psychotic Disorders / diagnosis*, epidemiology* Questionnaires* ROC Curve Reproducibility of Results |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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