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Flashcards in Last attempt Deck (14):
1

What are the advantages of a generic HRQoL measure?

Broadly applicable
Summarizes a range of concepts
May detect unanticipated effects

2

What are advantages of a disease-specific HRQoL measure?

More relevant for specific populations
More responsive to change in health

3

What are dis-advantages to a generic HRQoL?

May not be responsive to changes in health
May not be relevant for specific populations
Results may be difficult to interpret

4

What are disadvantages to a disease-specific HRQoL measure?

Cannot compare across population
Less likely to detect unanticipated effects

5

What is content validity?

Extent to which a set of items reflects content domain
A scale has content validity when items are randomly chosen subset of the universe of appropriate items
Usually have experts review for relevance

6

What is criterion-related validity?

If the scale has an association to "gold standard"

7

What is another name for criterion-related validity?

Predictive validity

8

What is construct validity?

Measures theoretical relationship of a variable to other variables

9

What is reliability?

Proportion of variance attributable to the true score of the latent variable
Consistently measures same result

10

What is internal consistency reliability?

Measures homogeneity of items w/in a scale

11

What is a latent variable?

Unobservable phenomenon that takes on a specific value under a set of conditions

12

What is a true score?

A scale developed to measure a latent variable that is intended to estimate its actual magnitude at the time & place of measurement for each subject

13

Which cost analysis is the most difficult, time consuming and expensive economic evaluation?

CUA

14

Why is CUA so difficult?

Difficult to derive QALYs