Exam 2- Validity Flashcards
what is validity
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what is needed for valid test
- discrimination
- evaluation of change
- prediction
what is discrimination of a valid test
Discrimination between groups or people; who has disease & who doesn’t?
what is the change of a valid test
is this patient getting better or worse? ROM, strength, function, etc.
what is a prediciton of a valid test
will this patient be able to perform a specific job given this test result? Will this patient respond to spinal manipulation?
what do you use validity for
a specific test, procedure or instrument and for any specific patient
reliability is
consistency ( gets the same result each time the same thing is measured)
validity is
reality
high reliability is associated with what type of validity
High OR low
what does a low reliability means for validity
low validity
what makes a valid test valid
if it is reliable
look at slide
6
what are measurements like in validity
they are usually inferred
- some are easy
- some are more difficult
what should the measurement of validity relate to
- discrimination
- change
- prediction
do you want to generalize beyond measurement
yes as it will allow us to better understand the disorder; does decreased knee ROM mean impaired function or disability?
