High sensitivity is particularly useful for which type of tests?

High sensitivity is particularly useful for which type of tests?

• A. Screening tests — low false negatives
• B. Screening tests — low false positives
• C. Confirmatory tests — low false negatives
• D. Confirmatory tests — low false positives

Answer: (A)

Sensitivity is about catching true cases; high sensitivity minimizes false negatives. In screening, the goal is to identify as many people with the condition as possible, even if that means including some who don’t have it (false positives) because those will be clarified later with a more specific test. So high sensitivity is most useful for screening tests to avoid missing real cases. The other options focus on reducing false positives or pertain to the needs of confirmatory testing, where specificity is more critical.

Sensitivity is about catching true cases; high sensitivity minimizes false negatives. In screening, the goal is to identify as many people with the condition as possible, even if that means including some who don’t have it (false positives) because those will be clarified later with a more specific test. So high sensitivity is most useful for screening tests to avoid missing real cases. The other options focus on reducing false positives or pertain to the needs of confirmatory testing, where specificity is more critical.