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758740
Performance Testing (Low Priority)
Description
Medical Microbiology (Basics) Quiz on Performance Testing (Low Priority), created by gina_evans0312 on 15/04/2014.
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medical microbiology
basics
Quiz by
gina_evans0312
, updated more than 1 year ago
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Created by
gina_evans0312
over 10 years ago
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Resource summary
Question 1
Question
Sensitivity- Ability of test to correctly identify those with disease x
Answer
True
False
Question 2
Question
What is the equation for sensitivity?
Image:
Performance_Testing (image/png)
Answer
(a/a+c) x 100
(a/a+b) x 100
Question 3
Question
Specificity
Answer
Ability of new test to correctly identify those without disease
Test that best predicts disease prevalence
Probability that person with +ve result has disease
Question 4
Question
The gold standard is the test that best predicts disease prevalence
Answer
True
False
Question 5
Question
Negative predictive value (probability that person with -ve result has the disease) =?
Image:
Performance_Testing (image/png)
Answer
(d/c+d)
(d/b+d)
Question 6
Question
When identifying people with a very high risk disease, what tests do you use, and in what order?
Answer
First one that's highly sensitive (so we don't miss anyone who does have it) and then one that's highly specific to remove those that don't
First one that's highly specific (to not worry people who don't have it unecessarily) then one that's highly sensitive
Question 7
Question
Prevalence = Those with disease/Total population
Answer
True
False
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