The validity of subjective quality of life measures in psychotic patients with severe psychopathology and cognitive deficits: an item response model analysis

Ulrich Reininghaus (Lead / Corresponding author), Rosemarie McCabe, Tom Burns, Tim Croudace, Stefan Priebe

    Research output: Contribution to journalArticlepeer-review

    19 Citations (Scopus)

    Abstract

    Subjective quality of life (SQOL) is an established patient-reported outcome in the evaluation of treatments for psychosis. The use of SQOL measures in the presence of psychiatric symptoms and cognitive deficits has been questioned. However, there is little evidence on whether items function differently as indicators of SQOL in psychotic patients with different levels of symptoms and deficits. Substantial differential item functioning (DIF) would, indeed, challenge the validity of established measures. We aimed to investigate the validity of a widely used measure of subjective quality of life (SQOL), i.e., the Lancashire Quality of Life Profile (LQOLP), in the presence of cognitive deficits and psychiatric symptoms in patients with severe and enduring psychosis.
    Original languageEnglish
    Pages (from-to)237-246
    Number of pages10
    JournalQuality of Life Research
    Volume21
    Issue number2
    DOIs
    Publication statusPublished - Mar 2012

    Keywords

    • Public Health, Environmental and Occupational Health

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