Sensitivity Vs. Specificity

SENSITIVY VS SPECIFICTY

Today let’s review what specificity and sensitivity means in relationship to special tests.

Sensitivity is the measure of likely hood that if the test is negative the patient does not have the pathology being tested.

 

Specificity is the measure of likely hood that if the test is positive the patient does have the pathology being tested.

Tests typically have either a high sensitivity, ruling out, or they have a high specificity, ruling in. 

A tip to remember the general rule is Sensitivity is snOUT or rule out
              Specificity is spIN or rule in