Explainthe characteristics of a standardised test.

Thecharacteristics of standardisedtest are as follows:

• Validity − The test has to be devised to measure what it claims to measure in order to be held as valid and usable.

• Reliability − This refers to the consistency of scores obtainedby an individual on the same test on two different occasions. Test-retest indicates temporal stability and split-half indicates internal consistency of the test.

• Norms − The test needs to devise norms or the average performance of the group. It helps in comparison and interpretation of an individual’s performance in relation to the overall standards of the group.