Insights Probabilistic Factors Involved in Disease and Virus Testing

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The discussion highlights the complexity of disease and virus testing, emphasizing the importance of understanding probabilistic factors involved in test results. Key concepts include the analysis of prevalence and its impact on predictive values, specifically Positive Predictive Value (PPV) and Negative Predictive Value (NPV). There is a suggestion for incorporating graphs to visually represent how PPV and NPV vary with different prevalence rates, which would enhance comprehension of the statistical relationships at play. The conversation underscores the necessity of clear visual aids to effectively communicate these intricate concepts.
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Very interesting, who knew testing was so complex!
 
Nice writeup!
I think a couple of graphs would be useful though, like the PPV/NPV as a function of prevalence for a couple of values of p/q, to really drive the message home.
 
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