What is the typical study design for an outcome measure?

Question 1

The ability for people and instruments to produce consistent values over time

Answer 1

Reliable

Question 2

The extent to which an outcome measure is useful

Answer 2

Valid

Question 3

Reflects an outcome measure’s ability to detect change over time

Answer 3

Responsive

Question 4

Test-retest
Internal consistency
Inter-rater
Intra-rater

Answer 4

Types of reliability

Question 5

Establishes the extent to which an outcome measure remains the same when no patient change has occurred

Answer 5

Test retest reliability

Question 6

Establishes the extent to which multiple items within an outcome measure reflect the same construct or domain

Answer 6

Internal consistency reliability

Question 7

Face
Content
Criterion
Construct
Known Groups

Answer 7

Types of validity

Question 8

Based on informal evaluation by experts that a test appears to measure what it intends to measure

Answer 8

Face validity

Question 9

Establishes that an outcome measure includes all of the characteristics that it purports to measure

Answer 9

Content validity

Question 10

Establishes the validity of an outcome measure by comparing it to another, more established measure

Answer 10

Criterion validity

Question 11

Criterion validity can either be… or…

Answer 11

Predictive, concurrent

Question 12

Establishes the ability of an outcome measure to assess an abstract characteristic or concept

Answer 12

Construct validity

Question 13

Construct validity can either be… or…

Answer 13

Convergent or divergent

Question 14

Establishes that an outcome measure produces different scores for groups with known differences on the characteristic being measured

Answer 14

Known groups validity

Question 15

A measure of the responsiveness that represents the minimum amount of change on an outcome measure that patients perceive as beneficial and would justify change in care

Answer 15

MCID

Question 16

The amount of change in a score (variable) that must be achieved to reflect that a true difference has occurred

Answer 16

MDC