Mokken scaling analyses of the Personal Disturbance Scale (DSSI/sAD) in large clinical and non-clinical samples

Alan Bedford, Roger Watson, Julie D. Henry, John R. Crawford, Ian J. Deary

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    Abstract

    The responses of a predominantly British sample of 479 persons undergoing psychiatric treatment (as in-, out and day patients), and two British samples from the general population, on the Personal Disturbance Scale (DSSI/sAD), were separately subjected to Mokken scale analyses. In all three instances, moderately strong, reliable and statistically significant Mokken scales were produced from the 14 item pool. These scales showed strong similarity in having seven items in common from their respective 10, 10 and 9 item Mokken scale solutions. These results, establishing a hierarchical item ordering, offer further validation for the DSSI/sAD.
    Original languageEnglish
    Pages (from-to)38-42
    Number of pages5
    JournalPersonality and Individual Differences
    Volume50
    Issue number1
    DOIs
    Publication statusPublished - 2011

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