SCS Study Guide- EBP Flashcards
if a test is positive and they really have the disease, it is a ____-
true positive
if the test is positive and they do not have the disease, this is a
false positive
if the test is negative, but they have the disease
false positive
if the test is negative and they do not have the disease
true negative
sensitivity
those with the disease who have a positive result
looking at true (+)
SNOUT
specificity
portion of those without the disease that have a true (-)
true (-) rate,
SPIN
sensitivity avoids the
false negative
specificity avoids the
false positive
type I error
false (+), using a treatment that is no better than the alternative
type II error
false (-)
not using a treatment because it said no difference, but in reality, it was better
if you have a high sensitivity, the rate of having a false (-) must be…
low
if you have a high specificity, the rate of having a false (+) must be…
low
positive predictive value
proportion of positive tests that are true positives
negative predictive value
those negative tests that are true negatives
as prevalence increase, what happens to PPV and NPV
PPV increases and NPV decreases
is LR affected by prevlanace
no, minimally
face validity
the instrument tested what is was supposed to test
content validity
sample measurements represent the whole
criterion related
concurrent and predictive
relationship to gold standard.
concurrent: validity when measures are taken at the same time
predictive: outcome can be used to predict future outcomes
construct
assesses ability of instrument to measure a theoretical hypothesis
case study
looks at one thing at depth
case-control study
descriptive research, subjects are chosen based on having/no-having disease, and then determines a previous exposure
longitudinal study
collect data over time, usually looking to describe developmental changes
randomized control trial
clinical treatment compared to control, subjects randomly assigned.
