Reliability refers to the consistency of a test or measure and is linked with replicability. A test or measure is reliable if when it is repeated the same results are found providing consistency of results.
Assessed by:
1) Test retest:
- A particpant repeats the study multiple times under the same conditions.
- There is time between the test and retest so that the participant will not recall their previous answers but not too much time so that a participant's view on a subject will change and alter their answers.
- Once the results have been collected they are correlated. If there is strong positive correlation of +0.80 it indicates that the test has high reliability.
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