# Shared Flashcard Set

## Details

Statistics
statistics
6
Veterinary Medicine
Professional
10/16/2021

Term
 What does the p-value measure?
Definition
 -A p-value is a measure of the probability that an observed difference could have occurred just by random chance -The lower the p-value, the greater the statistical difference  -P-value can be used as an alternative to or in addition to pre-selected confidence levels for hypothesis testing
Term
 The specificity of a test indicates what?
Definition
 -also called the True negative rate -the proportion of people without the disease who will have negative results -specificity of a test refers to how well a test identifies patients who do not have a disease
Term
 The sensitivity of a test measures what?
Definition
 -also called the true positive rate -the proportion of people with the disease who will have a positive result -A highly sensitive test can be useful for ruling out a disease if a person has a negative result
Term
 Explain the difference between sensitivity and specificity
Definition
 -Sensitivity: the ability of a test to correctly identify patients with a disease -Specificity: the ability of a test to correctly identify people without the disease   True positive: the person has the disease and the test is positive True negative: the person does not have the disease and the test is negative
Term
 Is specificity more important than sensitivity?
Definition
 The more sensitive a test, the less likely an individual with a negative test will have the disease, and thus the greater the negative predictive value   The more specific the test, the less likely an individual with a positive test will be free from disease and the greater the positive predictive value
Term
 Clinical sensitivity vs specificity
Definition
 Clinical sensitivity %age of positive patients testing positive Clinical specificity %age of negative patients testing negative
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