Week 4 Flashcards Preview

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Flashcards in Week 4 Deck (16):
1

If a diagnosis test has high sensitivity, what does that mean?

it has few false negatives

2

True or False:
-- NPV is the likelihood of not having a disease when a test is negative?

True

3

What tells you how likely a test result is to be found?

likelihood ratio

4

A highly specific test is effective in ruling conditions "in" or "out" and why?

in, because it has few false positives

5

True or False:
-- If a patient is very unlikely or very likely to have a disorder, there is probably no need for test?

True

6

What is the probability that a person WITH disorder will have a positive test result?

Sensitivity

7

What is the probability that a person WITHOUT disorder will have a negative test result?

Specificity

8

Ability of a Dx test to identify true disease without missing anyone who has it?

sensitivity

9

Ability of a Dx test to identify absence of disease without mislabeling anyone who does not have it?

specificity

10

What type of test has few false negatives so it is effective at ruling conditions "out"?

SnNout (sensitivity)

11

What type of test has few false positives so it is effective at ruling conditions "in"?

SpPin (specificity)

12

Existing cases of a disorder in a population at one point in time?

prevalence

13

The likelihood of having the Dx when the test is positive?

Positive Predictive Value (PPV)

14

The likelihood of not having the Dx when the test is negative?

Negative Predictive Value (NPV)

15

A LR > 10 is good for ruling the condition....

IN

16

A LR < 0.1 is good for ruling the condition....

OUT