Standardization: Standardization refers to the process of developing uniform procedures for administering and scoring intelligence tests so that they can be compared across individuals or groups.
Validity: Validity is the extent to which an intelligence test accurately measures what it is supposed to measure. It ensures that the test accurately reflects an individual's intellectual abilities.
Reliability: Reliability refers to the consistency of scores obtained from an intelligence test. A reliable test produces consistent results when administered multiple times or by different examiners.