# Sensitivity If you have a high sensitivity most of the things you select are the things you actually want Ratio of [[False Negatives]] to [[True Positives]] - ratio of things that show up as positive In medical tests sensitivity is how much you pick up on an actual infection - relevant to [[Testpops DD stage]] ![](435AAFB4-1FAD-4AC6-8EDF-40FE987F8C85-8236-000132AFCA9070B3/350px-Sensitivity_and_specificity.svg.png) Opposite of [[Specificity]] <!-- #mental-model --> [Web URL for this note](http://notes.benjaminreinhardt.com/Sensitivity) [Comment on this note](http://via.hypothes.is/http://notes.benjaminreinhardt.com/Sensitivity)