Diagnosticity

Diagnosticity refers to how effectively a piece of information helps distinguish between different possibilities or outcomes. For example, if a test results clearly indicate whether someone has a particular condition, that test has high diagnosticity because it quickly directs you to the right conclusion. Conversely, if the information is ambiguous and doesn't clarify which option is correct, it has low diagnosticity. In essence, diagnosticity measures how much a piece of evidence reduces uncertainty and aids in making accurate decisions or diagnoses.