3.3 Reliability

Question 1

Define reliability.

Answer 1

How consistent findings from an experiment or measuring device are.

Question 2

Define Test-retest reliability.

Answer 2

Method of assessing reliability of a questionnaire/psych test by assessing the same person on 2 separate occasions. This shows the extent to which a test is reliable.

Question 3

Define inter-observer reliability.

Answer 3

Extent to which there’s an agreement between 2 or more observers in observation of behaviour.

Question 4

How is inter-observer reliability measured?

Answer 4

By correlating the observations of 2 or more observers. If data has >+.8 reliability, it has high inter observer reliability