n. a mental and behavioral rating scale (with subscales) used to assess the progress and severity of dementia. The scale registers changes in managing daily activities such as deterioration of faculties (misplacing, forgetting), loss of cognition for people, and loss of bodily and toilet functions. First developed by British psychogeriatrician Gary Blessed in 1968.

BLESSED DEMENTIA SCALE (BDS): "The Blessed Dementia Scale (BDS) assesses an elderly person's ability to perform activities of daily living."
Cite this page: N., Pam M.S., "BLESSED DEMENTIA SCALE (BDS)," in, April 7, 2013, (accessed May 8, 2021).