Establish evidence for tests that diagnose disease and healthy people
In order to conduct a study on a diagnostic test, researchers first have to choose the current "gold standard" to compare the diagnostic test of interest to when establishing evidence.
Each participant is given the diagnostic test and then the findings, either positive or negative, are compared to the findings of the "gold standard" method of diagnosis.
The prevalence of the disease state being detected by the diagnostic test and the "gold standard" also has to be taken into consideration. With higher rates of prevalence, researchers will get more "positive" results simply due to the fact that more cases exist in the population.
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Diagnostic testing calculations
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