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10 Cards in this Set
- Front
- Back
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Positive Predictive Value |
likely to be higher for an animal already for an animal already showing clinical signs than in one not showing signs
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False Negative |
true positive animals that are undetected (positive animals that erroneously test negative)
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False Positive |
true negative animals that are undetected (negative animals that erroneously test positive)
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Sensitivity |
proportion of true positives detected (proportion of true positives that are undetected = false negative) |
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Specificity |
proportion of true negatives detected (proportion of true negatives undetected = false positive) |
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Determining Specificity and Sensitivity |
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Spectrum Bias |
-using a test in a patient drawn from a population other than the target population (specified by manufacturer) -can alter specificity and sensitivity |
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Calculating Prevalence |
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Calculating True Prevalence |
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Screening |
-Objective: identify unrecognized cases--positive predictive value matters -increasing sensitivity will increase # of cases found, may decrease specificity and increase # of false positives |
