Atest is said to be reliable if a person's score on a test is pretty much the same every time he or she takes it it contains an adequate sample of the skills it is supposed to measure its results agree with a more direct measure of what the test is designed to predict it is culture-fair it permits a person to project unconscious wishes based on the test stimuli

A test is said to be reliable if a person's score on a test is pretty much the same every time he or she takes it.

Reliability in scientific research refers to phenomenon where an experiment, testing tool or research study consistently provides the same findings or results each time it is taken. Furthermore, a reliable test provides the same scores despite it being conducted during different occasions or different time periods.