Borthwick-Duffy, S. A. (1994) Prevalence of destructive behaviors. In Destructive Behavior in Developmental Disabilities: Diagnosis and Treatment (ed. Thompson, T. & Gray, D. B.), pp. 3–23. Thousand Oaks, CA: Sage.
Cambell, M. & Malone, R. P. (1991) Mental retardation and psychiatric disorders. Hospital and Community Psychiatry, 42, 374–379.
Emerson, E., Kiernan, C., Alborz, A., et al (1997) The HARC Challenging Behaviour Project. Summary. Manchester: Hester Adrian Research Centre.
Emerson, E., Moss, S. C. & Kiernan, C. K. (1999) The relationship between challenging behaviour and psychiatric disorders in people with severe intellectual disabilities. In Psychiatric and Behavioural Disorders in Mental Retardation (ed. Bouras, N.), pp. 38–48. Cambridge: Cambridge University Press.
Felce, D., Lowe, K., Perry, J., et al (2000) Service support to people with severe intellectual disabilities and the most severe challenging behaviours in Wales: prevalence, outcome and costs. Journal of Intellectual Disability Research
Goldberg, D. & Huxley, P. (1980) Mental Illness in the Community. London: Tavistock Publications.
Kiernan, C. & Qureshi, H. (1993) Challenging behaviour. In Research to Practice? Implications of Research on the Challenging Behaviour of People with Learning Disabilities (ed. Kiernan, C.). Kidderminster: British Institute of Learning Disabilities.
King, B. H., De Antonio, C., McCracken, J. T., et al (1994) Psychiatric consultation in severe and profound mental retardation. American Journal of Psychiatry, 151, 1802–1808.
Kushlick, A., Blunden, R. & Cox, G. (1973) A method of rating behaviour characteristics for use in large scale surveys on mental handicap. Psychological Medicine, 3, 466–478.
Meins, W. (1995) Symptoms of major depression in mentally retarded adults. Journal of Intellectual Disability Research, 39, 41–45.
Moss, S. C., 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, 173–183.
Patel, P., Goldberg, D. & Moss, S. (1993) Psychiatric morbidity in older people with moderate and severe learning disability II: The prevalence study. British Journal of Psychiatry, 163, 481–491.
Prosser, H., Moss, S. C., Costello, H., et al (1998) Reliability and validity of the Mini PAS-ADD for assessing psychiatric disorders in adults with intellectual disability. Journal of Intellectual Disability Research, 42, 264–272.
Qureshi, H. & Alborz, A. (1992) Epidemiology of challenging behaviour. Mental Handicap Research, 5, 130–145.