Final answer:
Sensitivity is a statistical measure used in medicine to determine the accuracy of a diagnostic test. It refers to the proportion of people who have the target condition, according to the reference standard.
Step-by-step explanation:
Sensitivity is a statistical measure used in medicine to determine the accuracy of a diagnostic test. It refers to the proportion of people who have the target condition, such as a disease, according to the reference standard. For example, if a diagnostic test for a certain disease has a sensitivity of 90%, it means that 90% of people who actually have the disease will test positive for it.