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20 Cards in this Set
- Front
- Back
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what is the measurement of the likelihood of a negative result in patients known to be free of disease?
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specificity
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What is sensitivity?
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likelihodd of a positive test result in patients known to have the disease
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what is the equation used to figure the Positive Predicted Value?
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a/a+b
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What is the relationship of mean to median in results that are skewed to the left?
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The mean would be LESS than the median
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What measurements are used to make ROC curves?
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sensitivity and specificity
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What is the term Power analagous with?
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Diagnostic test specificity
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What does Beta error represent?
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number of false (-)
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number of individuals that develop a condition over a defined period of time
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Incidence
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Proportion of sampled individuals with a disease at a given point in time
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Prevelance
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Subjects a followed backwards on time from effects to causes
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Case control study
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All observations on an individual are made at one point in time
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cross sectional
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Observations are made over a period of time
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longitudinal
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A group of individuals who have something in common when they are assembled and then are followed to view the outcome
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Cohort
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Which study type has no comparison group
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Uncontrolled clinical trial
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This is data in which order is known but at an irregulat interval
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Ordinal data
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this is data which can only be put into categories without any inherent order
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Nominal data
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This is the prevelance of a disease estimated on the basis of diagnostic tests ONLY
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Apparent Prevelance
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How is relative risk different from Risk Ratio?
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They are the f-ing same thing
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What are you trying to prove when you use Serial Testing?
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trying to prove that animals that initially tested positive are in fact positive
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What is it called when multiple tests are performed at the same time trying to prove that healthy animals are truly healthy?
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Parallel testing
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