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Development and Psychometric Properties of an Assessment for Persons With Intellectual Disability—The interRAI ID
Author(s) -
Martin Lynn,
Hirdes John P.,
Fries Brant E.,
Smith Trevor F.
Publication year - 2007
Publication title -
journal of policy and practice in intellectual disabilities
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 30
eISSN - 1741-1130
pISSN - 1741-1122
DOI - 10.1111/j.1741-1130.2006.00094.x
Subject(s) - intellectual disability , cronbach's alpha , psychology , dementia , mental health , reliability (semiconductor) , challenging behaviour , minimum data set , service provider , service (business) , clinical psychology , psychiatry , psychometrics , medicine , nursing , nursing homes , power (physics) , physics , disease , pathology , quantum mechanics , economics , economy
This paper describes the development of the interRAI‐Intellectual Disability (interRAI ID), a comprehensive instrument that assesses all key domains of interest to service providers relative to a person with an intellectual disability (ID). The authors report on the reliability and validity of embedded scales for cognition, self‐care, aggression, and depression. Four provider agencies volunteered to participate and assessed a total of 160 community‐dwelling adults with ID using the interRAI ID, Dementia Questionnaire for Persons with Mental Retardation, and Reiss Screen for Maladaptive Behavior. All scales had acceptable levels of internal consistency (Cronbach’s alpha 0.74–0.93) and good relationships with the criterion measures ( r = 0.50–0.93, p < 0.0001). The development of the interRAI ID represents an important and successful first step toward an integrated, comprehensive, and standardized assessment of adults with ID. Use of this instrument may lead to more appropriate support planning, enhanced communication between various professionals supporting persons with ID, and a more seamless approach to supports across the health and social service systems.