Rowland Universal Dementia Assessment Scale 11 (RUDAS)
What It Measures
The RUDAS is a cognitive screen built to work across cultures and levels of education. Most brief screens lean on literacy, language, and cultural knowledge — naming, reading, writing — which means a person can score poorly for reasons that have nothing to do with dementia. The RUDAS was designed to avoid that.
Six items cover memory, body orientation, praxis, drawing, judgement, and language. The person is given a short grocery list to remember and recall later, asked to point to parts of their own body and the examiner's, asked to alternate fist and palm movements, asked to copy a cube, asked how they would cross a busy road safely, and asked to name as many animals as they can. Totals run 0 to 30.
Further Reading
Additional Notes
Licensing Notes: The scale is freely available, distributed by Dementia Australia along with translations and administration guidance. Available in more than 30 languages.
Learn More: The key design feature is that the RUDAS is written in English but built to be administered in any language, including through an interpreter, without losing validity. The original validation in a multi-ethnic Australian sample found accuracy did not vary by years of education or preferred language — which is what the "Universal" in the name refers to, and what distinguishes it from the MMSE and MoCA.
A cut-point of 22 or below indicates possible cognitive impairment warranting further investigation, with 89% sensitivity and 98% specificity in the original study. Despite requiring minimal training, the developers recommend about 40 minutes of video-based instruction before use.