Workshop #3 Flashcards
Portion of patients with the diagnosis that have the physical sign (have the positive result)
Sensitivity
Portion of patients without the diagnosis that lack the physical sign (have the negative result).
Specificity
Physical signs with a high ___________, greatly increase the probability of the disease when signs are present
Specificity
Sppin =
A Specific test when Positive rules IN disease
SnNout =
A Sensitive test when Negative rules OUT disease
used for for determining if the symptom is a predictor of the hypotheses
LR(+), LR(-), and anything in between
how much a positive test result increases the probability of disease
positive likelihood ratio LR(+)
how much a negative test result decreases the probability of a disease
negative likelihood ratio LR(-)
Likelihood Ratios:
- 3 = ____%
- 0 = ____%
- 3= (-) -25%
3. 0= (+) 20%
Likelihood Ratios of ___ - ____ indicate poor likelihood data
0.4 - 2.9
LR of __________ = no likelihood of disease
0.3 or less
LR of _________ = high likelihood of disease
3.0 or more
Something you expect to see, and it is there
Something I expect to find that is there and supports my hypothesis
Significant Positive
Something you do not expect to see, and it supports that they do not have this hypothesis
(Rules out other hypothesis to try to get closer to the one you want them to have)
Significant Negative
The absence of __________ will support the hypothesis
Significant Negative