Instruments for the Assessment of Dementia Among People with Intellectual Disabilities

The following information is provided for instruments that are in prevalent use. This site offers no endorsement of their use. For information on the instruments see "Test Battery for the Diagnosis of Dementia in Individuals with Intellectual Disability" or contact the authors of the instruments listed below.

1. Dementia Scale for Down Syndrome (DSDS)

Order from: Dr. A. Gedye
P.O. Box 39081 Point Grey
Vancouver, BC V6R 4P1
Fax: 1-604-733-1950
Information on the French Language version and the eligibility forms can be accessed at the following website:

2. Dementia Questionnaire for Mentally Retarded Persons (DMR)

Order from:
Professor Dr. Heleen M. Evenhuis
Erasmus University Rotterdam
Intellectual Disability Medicine - Room F317
Department of General Practice
P.O. Box 1738
3000 DR Rotterdam, the Netherlands
email: [email protected]

3. Assessment for Adults with Developmental Disabilities [AADS]

Order from: Dr. Sunny Kalsy
Clinical Psychologist
Psychology Service
66 Anchorage Road
Sutton Coldfield
West Midlands
England B74 2PH
email: [email protected]

Download a PDF version of the Assessment for Adults with Developmental Disabilities for use in the US and Canada

Download a PDF copy of the Manual for the "Assessment For Adults With Developmental Disabilities" (A.A.D.S.) Questionnaire