Defining disability in psychosis: performance of the diagnostic interview for psychosis - disability module (DIP-DIS) in the Australian National Survey of Psychotic Disorders

O. Gureje, H. Herrman, C. Harvey, T. Trauer, Assen Jablensky

    Research output: Contribution to journalArticle

    12 Citations (Scopus)

    Abstract

    Objective: We aimed to use data from the Australian Survey of Mental Health and Wellbeing to examine the psychometric properties of the Diagnostic Interview for Psychosis-Disability Module (DIP-DIS). The DIP-DIS is a semi-structured questionnaire specially designed to assess disability associated with psychotic disorders.Method: The psychometric properties of the instrument were determined by examining its inter-rater reliability, internal structure, as well as its criterion and discriminant validities.Results: Analysis shows: (1) that it can be rated reliably by trained interviewers, (2) that the items are complementary but tap a number of different domains, (3) that four factors account for over 66% of the variance, and (4) that it is sensitive to differing clinical populations with expected differences in level of disability. Ratings on the DIP-DIS bore significant relationships with a criterion measure of quality of life.Conclusions: The DIP-DIS has encouraging psychometric properties for cross-sectional assessment of disability and may be useful in future studies of disablement associated with psychosis. Future work should examine its sensitivity to change.
    Original languageEnglish
    Pages (from-to)846-851
    JournalAustralian and New Zealand Journal of Psychiatry
    Volume35
    DOIs
    Publication statusPublished - 2001

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