MS-2536

A new screening test has been developed for detecting dementia in elderly patients. This was tested on a cohort of 500 patients above the age of 65. 150 of these 500 patients have an existing diagnosis of dementia. Amongst these patients, 120 of them were tested positive using this new screening test. Amongst the remaining patients who do not have dementia, 50 of them were found to be positive using the new screening test.

What is the specificity of this new screening test?