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The lecture False Positives and False Negatives – Screening Tests by Raywat Deonandan, PhD is from the course Screening Tests.
You estimate that the patient in your office has a one in four chance of having a serious disease. You order a diagnostic test with sensitivity of 95% and specificity of 90%. The result comes back positive. Based on all the information now available, what is the chance your patient really has the disease?
You estimate that the patient in your office has a one in four chance of having a serious disease. You order a diagnostic test with sensitivity of 95% and specificity of 90%. The result comes back NEGATIVE. Based on all the information now available, what is the chance your patient really has the disease to the closest whole number?
A screening test is developed for disease X. What do we call the probability that the test will correctly identify someone who truly does not have disease X?
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