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Measuring health, QOL instruments - Coggle Diagram
Measuring health
Measurement properties
Validity
face
content
criterion
cross sect and longitudinal
Reliability
test-retest
intra-rater
inter-rater
SEM
MCD
Sensitivity
outcome can detect the change
communicate amount of error
Responsiveness
distribution based
anchor based
Outcomes
Discriminative
classify
diagnostic tool
Predictive
tool to predict future events
Evaluative
change measuremet
effect of intervention
Direct and indirect measurement
surrogate outcome
performance test
physiological test
cannot be used to make strong rec
Not directly important to pt
patient important outcome
directly important to patient
larger/ real life studies
QOL, death, re-hospitalization
can be used to make strong rec
PROMS
QOL instruments
Region specific
less sensitive
affected regional area
Generic
least
non specific
Disease specific
Most sensitive to change
specific area where disease present