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Statistics
statistics
6
Veterinary Medicine
Professional
10/16/2021

Additional Veterinary Medicine Flashcards

 


 

Cards

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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