Open AccessRoyal Park Multidiagnostic Instrument for Psychosis: Part II. Development, Reliability, and Validity
Author(s) -
Patrick D. McGorry,
Bruce Singh,
David Copolov,
Ida Kaplan,
Catherine R. Dossetor,
Raphael J. van Riel
Publication year - 1990
Publication title -
schizophrenia bulletin
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.823
H-Index - 190
eISSN - 1745-1701
pISSN - 0586-7614
DOI - 10.1093/schbul/16.3.517
Subject(s) - inter rater reliability , psychosis , psychology , reliability (semiconductor) , test validity , medical diagnosis , validity , psychometrics , clinical psychology , psychiatry , medicine , rating scale , developmental psychology , power (physics) , pathology , physics , quantum mechanics
The Royal Park Multidiagnostic Instrument for Psychosis is a validity-oriented assessment procedure developed for the acute psychotic episode using serial interviews and multiple information sources. This article describes the development and structure of the RPMIP and reports the findings of an interrater reliability study (n = 50). In addition, results are presented from a study that examined aspects of the procedural validity of the instrument when contrasted with consensus diagnoses made by a team of clinicians applying operational criteria in a less formal way to a common sample of patients (n = 87). Finally, the role of assessment procedures of this type in research into psychiatric disorders is briefly discussed.
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