Just before he died, several physicians were treating Joe for a stroke; an autopsy showed he had Alzheimer's Disease. Joe's physicians showed:

Question

Quizplus · Accepted Answer

The physicians reliably identified symptoms consistent with a stroke, but their diagnosis was not valid for Alzheimer's Disease, which was only revealed through an autopsy. Reliability refers to the consistency of their diagnosis (they all agreed on stroke symptoms), while validity refers to the accuracy of the diagnosis in reflecting the true condition (which was Alzheimer's, not identified by them).

Just Before He Died, Several Physicians Were Treating Joe for a Stroke;