Understanding medical tests: A new addition to our toolkit addressing sensitivity, specificity, and other core concepts

Hardly a day goes by without some media outlet making an impressive-sounding claim about the accuracy of a new medical test.

Prostate cancer breakthrough as UK team develops more accurate test“ “New Breath and Urine Tests May Detect Early Breast Cancer More Accurately” “Portable device detects severe stroke in seconds with 92% accuracy”

But as we repeatedly point out in our story reviews and blog posts, these messages often badly misrepresent what these tests are actually...

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