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    GlossaryDiagnostic Accuracy

    ability of a test to correctly identify a condition

    Diagnostic accuracy refers to how well a medical test or procedure correctly identifies or rules out a disease or condition. It encompasses two main components: sensitivity (the ability to correctly identify those with the disease) and specificity (the ability to correctly identify those without the disease). For example, in the context of diagnosing alopecia, a test with high diagnostic accuracy would reliably distinguish between individuals who have alopecia and those who do not.

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