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What is Diagnostic power of the test is reflected by- and explain in detail?
Ref:Parks 25th edition pg 153 Predictive value reflects the diagnostic power of a test. Positive predictive value indicates the probability that a patient with a positive test result has, in fact, the disease in question. The more prevalent disease in a given population, the more accurate will be the predictive value of a positive screening test. As prevalence decrease, positive predictive value decreases.