This is Carl’s clear explanation of why Zum Zum water is rare based on this morning’s post analysing the latest breakthrough test.
In just over 5 minutes, the video explains sensitivity, specificity, the positive predictive value, how prevalence affects the results and the problems of false positives and negatives.
There is a lot to cover in five minutes, but hopefully, this will clear up some of the confusion surrounding test accuracy results.
The breakthrough test
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The Telegraph has moved on from wonder drugs and fountains of youth to a breakthrough test that ‘detects prostate cancer in less than 15 minutes.’
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