Validity & Reliability

Question 1

Reliability

Answer 1

A measure gives consistent results

Question 2

A measure (e.g., Anxiety Scale) that actually measures what it intends it measure (e.g., Anxiety).

Answer 2

Validity

Question 3

Consistency between observers.

Answer 3

Interobserver Reliability

Question 4

The degree to which score on scale correlates with another scale.

Answer 4

Parallel Forms

Question 5

Test-Retest Reliability

Answer 5

Consistency of a measure over time (for example 6 weeks apart).

Question 6

Items on an instrument measure the same thing.

Answer 6

Internal Consistency

Question 7

Often used to test internal consistency. We want to see an alpha of .70 or higher.

Answer 7

Cronbach alpha

Question 8

In quantitative research, in the subjective judgment by the researcher that a measure appears to measure what it is supposed to measure.

Answer 8

Face Validity

Question 9

In quantitative research, seeks to determine the degree to which a measure covers the range of meanings included within a concept.

Answer 9

Content Validity

Question 10

In quantitative research, the degree to which a measure relates to an external concrete or observable measure.

Answer 10

Criterion Validity

Question 11

In quantitative research, the degree to which a measure relates to other variables as expected within a system of theoretical relationships.

Answer 11

Construct Validity