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Sensitivity & Specificity

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degimeko's version from 2017-09-24 22:00

Section

Question Answer
a test's ability to detect a disease if one is presentsensitivity
is a test's ability to give a negative result if no disease is presentspecificity
False positivethe test is positive but no disease is present
False negativethe test is negative but a disease is present
False negatives affect _________ making it impossible to know who does have the diseasesensitivity
False positives affect _______ making it impossible to know who does not have the diseasespecificity
the probability of a disease based on a positive test and the probability of no disease with a negative testpredictive values
the rate of pick-up of the disease in a testsensitivty
100% sensitive test will give you no _____ _____ resultsfalse negative
00% specific test will give you no ____ _____ resultsfalse positive
If the test result is negative, the likelihood that the patient will NOT have the diseasenegative predictive value
If the test result is positive, the likelihood that the patient WILL have the diseasepositive predictive value
Why are sensitivity/specificity tests usedto analyze the value of screening or tests
A background probability of a patient having a conditionpre-test probability
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