What is Degree of Selectivity?

Degree of selectivity refers to the ability of a diagnostic test, screening tool, or therapeutic intervention to correctly identify or differentiate between specific conditions or populations. It is often expressed in terms of the test's sensitivity and specificity, indicating how well it can identify true positives and true negatives. A high degree of selectivity is crucial for minimizing false positives and ensuring accurate diagnoses or effective treatments. In other contexts, such as education or job recruitment, it can denote how discerning an institution or employer is in choosing candidates.