Rating Scale for Dementia (BRSD)
The CERAD Behavior Rating Scale for Dementia (BRSD) is a
standardized instrument for rating behavioral abnormalities
in demented or cognitively impaired subjects. Descriptive
items are scaled according to frequency of psychopathological
In a pilot test, the initial 51-item scale was administered
by trained examiners to informants for 303 subjects with
probable AD who had undergone standardized clinical evaluation
by CERAD. Wide variability was found in the nature of the
behavioral disturbances; factor analysis indicated eight
preliminary factors that mapped onto the following clinically
This scale was found to be reliable with high interrater
agreement. It has since been modified slightly on the basis
of this study. The questionnaire is now available for purchase
in either a 46-item version or a shorter 17-item version,
together with an instruction manual. A video training tape
is also available.
See the CERAD list of publications on behavioral changes
For information regarding purchase of this interview material,
check the Order Form.
Printable version of this page.