Reliability and validity

Question 1

Reliability

Answer 1

The consistency of the test, measure or observer

Question 2

What’s a reliable measure

Answer 2

One that produces the same results on different occasions

Question 3

Inter-rater reliability

Answer 3

Running a correlation between the scores given by 2 or more judges

Question 4

Test-retest reliability

Answer 4

Participants take part in the same test twice and the reliability is measured by correlating the scores on the tests

Question 5

Equivalent forms reliability

Answer 5

Participants take 2 equivalent or similar forms of the same test and their scores are correlated

Question 6

Split half reliability

Answer 6

Measure of internal consistency to see if each part of the test gives the same result as others so a single test is split into 2 or more parts and a correlation is run between them

Question 7

Validity

Answer 7

Whether a test is measuring what it claims to be measuring

Question 8

Face/content validity

Answer 8

Evaluating whether or not the test looks right and the content seems representative of the area being covered

Question 9

Concurrent validity

Answer 9

Measured by comparing the results on a test to an independent measure of the same variable

Question 10

Ecological validity

Answer 10

A measure of how test performance predicts behaviours in real world settings (external validity)

Question 11

Temporal validity

Answer 11

The ability to generalise findings from a study to different time periods