Questions tagged [true-positive-rate]

4 questions
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ROC curve from an array of Confusion Matrices (true positive rates and false positive rates)

How can we create an ROC curve from an array of Confusion Matrices (true positive rates and false positive rates)?
Vic
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Could we calculate the sensitivity and specificity when the test result of gold-standard is binary but the new test is 3-class classification?

Now we want to create a new test (Method A) to screen for a disease. In fact, there is a ‘gold-standard’ screening test for the disease (Method B). And the test result of gold-standard (Method B) is binary (Positive vs. Negative). However, the test…
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Likelihood of True Positive only from TPR and FPR

When preparing for an interview, I got the following question (on this medium link), Given a medical test produce a 1% False Positive rate (FPR), and the population True Positive Rate (TPR) is 5%, what is the likelihood of a True Positive given by…
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Bayes theorem for a rare disease

I learned about Bayes' theorem recently and hoped to apply it to the following problem: 1% of a country's population has a rare disease. A resident takes a disease test with a true positive rate of 80% and a true negative rate of 90%. If the test…