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Reliability and validity of the PAS-ADD Checklist for detecting psychiatric disorders in adults with intellectual disability

Moss, S, Prosser, H, Costello, H and Simpson, N 1998, 'Reliability and validity of the PAS-ADD Checklist for detecting psychiatric disorders in adults with intellectual disability' , Journal of Intellectual Disability Research, 42 (2) , pp. 173-183.

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    Abstract

    The PAS-ADD Checklist is a screening instrument specifically designed to help staff recognize mental health problems in the people with intellectual disability for whom they care, and to make informed referral decisions. The instrument consists of a life-events checklist and 29 symptom items scored on a four-point scale. Scores are combined to provide three threshold scores. The crossing of any of these thresholds indicates the need for a fuller assessment. The items are worded in everyday language, making the Checklist suitable for use by individuals who do not have a background in psychopathology. The present paper presents the results of a number of studies evaluating the reliability and validity of the Checklist. Factor analysis of Checklists completed on a community sample of 201 individuals yielded eight factors, of which seven were readily interpretable in diagnostic terms. Internal consistency of the scales was generally acceptable. Inter-rater reliability in respect to individual items gave a fairly low average Kappa of 0.42. However, agreement on case identification, the main purpose of the Checklist, was quite good, with 83% of the decision being in agreement. Validity in relation to clinical opinion was also satisfactory, case detection rising appropriately with the clinically judged severity of disorder.

    Item Type: Article
    Uncontrolled Keywords: PAS-ADD checklist, reliability, validity, psychiatric disorders, mental retardation
    Themes: Health and Wellbeing
    Schools: Colleges and Schools > College of Health & Social Care
    Colleges and Schools > College of Health & Social Care > School of Nursing, Midwifery, Social Work & Social Sciences > Centre for Social Justice Research
    Journal or Publication Title: Journal of Intellectual Disability Research
    Publisher: Wiley-Blackwell
    Refereed: Yes
    ISSN: 1365-2788
    Depositing User: H Prosser
    Date Deposited: 26 Sep 2011 10:54
    Last Modified: 20 Aug 2013 18:10
    URI: http://usir.salford.ac.uk/id/eprint/17694

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