Flashcards in Module 10 & 11 Deck (5)
The measure of how well a test identifies the presence of a disease when it is present. TP out of all people with disease. SeNsitivity rules OUT (SNOUT). i.e., if a patient tests negative with a sensitive test, we can be more confident that they DON'T have the disease.
The measure of how well a test identifies the absence of a disease when it is absent. TN out of all people without disease. SPecificity rules IN. i.e., if a patient tests positive with a highly specific test, it is more likely they actually have the disease.
Define "Positive Predictive Value"
TP out of all positives. Defines how well a positive result predicts disease.
Define "Negative Predictive Value"
TP out of all negatives. Defines how well a negative result predicts absence of a disease