SPECIFICITY VS SENSITIVITY OF A TEST Specificity Sensitivity Definition It is the percentage of people who test negative for a specific disease among a group of people who do not have the disease It is the percentage of people who test positive for a specific disease among a group of people who have the disease Easy to understand concept: The ability of a test to correctly identify people without the disease. The ability of a test to correctly identify patients with a disease. Other name true negative rate (TNR) true positive rate (TPR) Interpretation The person does NOT have the targeted disorder. The person has the targeted disorder. Statistical Outcome True Negative True Positive The Rule Rule In (SpIn) SpPin : A te...