Consider this hypothetical information: It can be difficult to differentiate mild dementia from normal memory loss or the temporary effects of illness and/or medications in the elderly. Suppose a study used a Quickie Test to save money. The table below compares the results of this test among a group of non-impaired elderly to test results from a group with mild dementia (as diagnosed by a gold standard)

If the researchers used a cutoff of >5 items checked on the QuickieTest as a positive test for mild dementia what would be the sensitivity of the test?

Select one:

a. 12%

b. 30%

c. 70%

d. 88%

?

# of items checked on QuickieTest % of elderly with mild dementia of elder ly with NO dementia who checked. who checked... 0% 21% 1 0% 27% 2 0% 16% 2% 14% 4 10% 12% 18% 10% 6 25% 0% 7 24% 0% 2 1%