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The PAS–ADD Checklist: independent replication of its psychometric properties in a community sample

  • Peter Sturmey (a1), Jonathon Timothy Newton (a2), Amy Cowley (a3), Nick Bouras (a3) and Geraldine Holt (a3)...
Abstract
Background

The development of reliable, valid measures of psychopathology in people with intellectual disabilities is an important task. However, independent replication studies are rarely reported.

Aims

To report data on the psychometric properties of the Psychiatric Assessment Schedule for Adults with Developmental Disabilities (PAS–ADD) Checklist.

Method

The PAS–ADD Checklist was completed for 226 adults as part of the assessment process for a specialist mental health service for people with intellectual disabilities.

Results

Internal consistency was acceptable. Factor analysis revealed one main factor that was characterised by items related to mood. The Checklist was sensitive to differences between diagnostic groups and had an overall sensitivity of 66%; its specificity was 70%.

Conclusions

The PAS–ADD Checklist is a quick and easy to use screening tool. Although at present it is the best measure available, it should not be the only method used to identify psychiatric disorders in people with intellectual disabilities.

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Copyright
Corresponding author
Professor Nick Bouras, MHiLD, York Clinic, 47 Weston Street, Guy's Hospital, London SE1 3RR, UK. E-mail: nick.bouras@kcl.ac.uk
Footnotes
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Declaration of interest

None.

Footnotes
References
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Goldberg, D. P., Gater, R., Sartorius, N., et al (1997) The validity of two versions of the GHQ in the WHO study of mental illness in general health care. Psychological Medicine, 27, 191197.
Moss, S., Patel, P., Prosser, H., et al (1993) Psychiatric morbidity in older people with moderate and severe learning disability. I: Development and reliability of the patient interview (PAS–ADD). British Journal of Psychiatry, 163, 471480.
Moss, S., Prosser, H., Costello, H., et al (1998) Reliability and validity of the PAS–ADD Checklist for detecting psychiatric disorders in adults with intellectual disability. Journal of Intellectual Disability Research, 42, 173183.
Nunnally, J. C. (1978) Psychometric Theory (2nd edn). New York: McGraw–Hill.
Sturmey, P., Reed, J. & Corbett, J. (1993) Assessment of psychiatric disorders in people with learning difficulties: a psychometric review of available measures. Psychological Medicine, 21, 143155.
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The British Journal of Psychiatry
  • ISSN: 0007-1250
  • EISSN: 1472-1465
  • URL: /core/journals/the-british-journal-of-psychiatry
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The PAS–ADD Checklist: independent replication of its psychometric properties in a community sample

  • Peter Sturmey (a1), Jonathon Timothy Newton (a2), Amy Cowley (a3), Nick Bouras (a3) and Geraldine Holt (a3)...
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