Statistics

Question 0

Define validity

Answer 0

The validity of the instrument refers to the degree to which the results of a test measurement correspond to the true state of the phenomenon being measured

Question 1

Define Responsiveness

Answer 1

In an outcome instrument, the component of the methodology which refers to the ability of the instrument to change with the status of the patient.

Question 2

Define sensitivity

Answer 2

The sensitivity is the property of the instrument that describes the proportion of patients with a particular disorder in whom a test is positive.

Question 3

Define reliability

Answer 3

Reliability is the extent to which repeated measurements of a relatively stable phenomenon are close to each other or the ability to measure something the same way twice.

Question 4

Define clinical utility

Answer 4

Clinical utility is the quality of a study that makes it acceptable to the patient, or patient friendly.

Question 5

Define Minimally clinically important difference

Answer 5

Minimally clinically important difference represents the minimal necessary change in scoring on an outcome measure that would be perceived by a patient as either beneficial or harmful.

Question 6

Define validity

Answer 6

Validity denotes the ability of an outcome measurement instrument to measure a phenomenon accurately