It is much less likely to produce a false positive, adds Dr. Thompson, than an initial screening test would be.
Nine years ago, heads rolled after the BBC was found guilty of making a false positive, of running an inaccurate story.
It's called "the paradox of the false positive," and it's a doozy.
a test result that is read as positive but actually is negative, a test that shows evidence of a disease when it not present; also written false-positive
false positive n.
A positive test result in a subject that does not possess the attribute for which the test is being conducted.