Yes, understood, ideally you would have two tests, one with high sensitivity to give some confidence that the disease is there, following by the high specificity test to compound the probability and rule out the false positive. Usually most tests have a trade off between specificity and sensitivity so two tests are needed.
Edit:
Watched the two videos, I love both these YouTubers but haven’t seen either video before. The calculating of the Bayes factor as an update to the prior odds was very interesting, helped increase my understanding, thank you.
Ironic that you’re acting superior to people for feeling shitty about the shitty state of the world and casting aspersions about them feeling superior about it.
I think it’s completely understandable that people are despondent about the fact that every summer the air smells like carcinogens, and that we are being worked to the bone with little to no chance for advancement.